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Timer/Counter/Analyzer CNT-90, CNT-91 Frequency Calibrator/Analyzer CNT-91R Microwave Counter/Analyzer CNT-90XL User's Manual Distributed by: Sie haben Fragen oder wünschen eine Beratung? Angebotsanfrage unter 07121 / 51 50 50 oder über info@datatec.de...
Frequency Measurements ....4-3 Environmental Considerations..... 1-6 FREQ A, B..........4-3 Unpacking ........1-7 FREQ C............ 4-4 Check List ..........1-7 CNT-90/91(R)........4-4 Identification..........1-7 CNT-90XL .......... 4-4 Installation..........1-8 RATIO A/B, B/A, C/A, C/B ......4-4 Supply Voltage........1-8 BURST A, B, C .........
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5 Measurement Control Single A, B Back-to-Back ....4-14 Frequency A, B Back-to-Back ... 4-14 About This Chapter ........5-2 Time Measurements ...... 4-15 Measurement Time ......5-2 Gate Indicator ........5-2 Introduction ..........4-15 Single Measurements ......5-2 Triggering.......... 4-15 Hold/Run &...
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5 Measurement Control Single A, B Back-to-Back ....4-14 Frequency A, B Back-to-Back ... 4-14 About This Chapter ........5-2 Time Measurements ...... 4-15 Measurement Time ......5-2 Gate Indicator ........5-2 Introduction ..........4-15 Single Measurements ......5-2 Triggering.......... 4-15 Hold/Run &...
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Arming Examples........5-9 Single A, B Back-to-Back ....4-14 Frequency A, B Back-to-Back ... 4-14 Introduction to Arming Examples ..5-9 #1 Measuring the First Burst Pulse ..5-9 Time Measurements ...... 4-15 #2 Measuring the Second Burst Introduction ..........4-15 Pulse..........
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Power sensitivity....... 7-20 Ordering Information ....... 8-14 Power accuracy........ 7-20 Timebase Options........8-15 Battery Supply ........7-21 Explanations........8-15 Option 23/90 for CNT-90 & CNT-90XL only ........... 7-21 CNT-90XL ........8-16 8 Specifications Introduction..........8-17 Measurement Functions ......8-17 CNT-90 ..........8-2 Frequency A, B, C ......
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Power sensitivity....... 7-20 Ordering Information ....... 8-14 Power accuracy........ 7-20 Timebase Options........8-15 Battery Supply ........7-21 Explanations........8-15 Option 23/90 for CNT-90 & CNT-90XL only ........... 7-21 CNT-90XL ........8-16 8 Specifications Introduction..........8-17 Measurement Functions ......8-17 CNT-90 ..........8-2 Frequency A, B, C ......
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Option 23/90 for CNT-90 & CNT-90XL Timebase Options........8-15 only ........... 7-13 Explanations........8-15 CNT-90XL ........8-16 8 Specifications Introduction..........8-17 CNT-90 ..........8-2 Measurement Functions ......8-17 Introduction ..........8-3 Frequency A, B, C ......8-17 Measurement Functions......8-3 Frequency Burst A, B ....... 8-17 Frequency A, B, C.......
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Input and Output Specifications ....8-19 Input and Output Specifications....8-35 Inputs A and B........8-19 Inputs A and B ........8-35 Input C..........8-20 Input C (Option 10)......8-35 Rear Panel Inputs & Outputs .... 8-20 Input C (Option 13)......8-36 Input C (Options 14 &...
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Input and Output Specifications ....8-19 Input and Output Specifications....8-35 Inputs A and B........8-19 Inputs A and B ........8-35 Input C..........8-20 Input C (Option 10)......8-35 Rear Panel Inputs & Outputs .... 8-20 Input C (Option 13)......8-36 Input C (Options 14 &...
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Explanations ........8-25 Timebase Specifications CNT-91R ..8-45 Explanations........8-45 CNT-91(R) ........8-30 CNT-91R/71B........8-46 Introduction ..........8-31 Measurement Functions......8-31 Introduction..........8-47 Frequency A, B, C......8-31 Measurement Functions ......8-47 Frequency Burst A, B, C....8-31 Frequency A, B, C ......8-47 Period A, B, C Average .....
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Input and Output Specifications ....8-51 Inputs A and B........8-51 Input C..........8-51 Rear Panel Inputs & Outputs .... 8-52 Auxiliary Functions........8-52 Trigger Hold-Off........ 8-52 External Start/Stop Arming ....8-52 Statistics........... 8-52 Mathematics ........8-53 Other Functions ........ 8-53 Display ..........
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Input and Output Specifications ....8-51 Inputs A and B........8-51 Input C..........8-51 Rear Panel Inputs & Outputs .... 8-52 Auxiliary Functions........8-52 Trigger Hold-Off........ 8-52 External Start/Stop Arming ....8-52 Statistics........... 8-52 Mathematics ........8-53 Other Functions ........ 8-53 Display ..........
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10 Service ......10-2 Sales and Service Office 11 Appendix New Look..........11-2...
GENERAL INFORMATION About this Manual This manual contains directions for use that apply to the Timer/Counter/Analyzers CNT-90 and CNT-91 as well as the Frequency Calibrator/Analyzer CNT-91R and CNT-91R/71B and the Mi- crowave Counter/Analyzer CNT-90XL. In order to simplify the references, these instruments are further referred to throughout this manual as the '9X', whenever the information applies to all types.
GENERAL INFORMATION About this Manual This manual contains directions for use that apply to the Timer/Counter/Analyzers CNT-90 and CNT-91 as well as the Frequency Calibrator/Analyzer CNT-91R and CNT-91R/71B and the Mi- crowave Counter/Analyzer CNT-90XL. In order to simplify the references, these instruments are further referred to throughout this manual as the '9X', whenever the information applies to all types.
GENERAL INFORMATION About this Manual This manual contains directions for use that apply to the Timer/Counter/Analyzers CNT-90 and CNT-91 as well as the Frequency Calibrator/Analyzer CNT-91R and CNT-91R/71B and the Mi- crowave Counter/Analyzer CNT-90XL. In order to simplify the references, these instruments are further referred to throughout this manual as the '9X', whenever the information applies to all types.
CNT-91R/71B, which have a fixed ultra- instrument is the comprehensive arming stable rubidium oscillator. possibilities, which allow you to characterize —CNT-90, CNT-91(R): virtually any type of complex signal A variety of RF prescaler options with upper concerning frequency and time.
CNT-91R/71B, which have a fixed ultra- instrument is the comprehensive arming stable rubidium oscillator. possibilities, which allow you to characterize —CNT-90, CNT-91(R): virtually any type of complex signal A variety of RF prescaler options with upper concerning frequency and time.
CNT-91R/71B, which have a fixed ultra- instrument is the comprehensive arming stable rubidium oscillator. possibilities, which allow you to characterize —CNT-90, CNT-91(R): virtually any type of complex signal A variety of RF prescaler options with upper concerning frequency and time.
Preface Design Innovations In addition to the traditional measurement functions of a timer/counter, these instruments have a multitude of other State of the Art Technology functions such as phase, duty factor, rise/fall-time and peak voltage. The counter Gives Durable Use can perform all measurement functions on These counters are designed for quality and both main inputs (A &...
Preface Design Innovations In addition to the traditional measurement functions of a timer/counter, these instruments have a multitude of other State of the Art Technology functions such as phase, duty factor, rise/fall-time and peak voltage. The counter Gives Durable Use can perform all measurement functions on These counters are designed for quality and both main inputs (A &...
Preface Design Innovations In addition to the traditional measurement functions of a timer/counter, these instruments have a multitude of other State of the Art Technology functions such as phase, duty factor, rise/fall-time and peak voltage. The counter Gives Durable Use can perform all measurement functions on These counters are designed for quality and both main inputs (A &...
+ 1 clock pulse (10 ns) is reduced to 100 ps bus properties. for the CNT-90 and 50 ps for the CNT-91(R). The bus transfer rate is up to 4000 Since the measurement is synchronized with triggered measurements/s in CNT-91(R).
+ 1 clock pulse (10 ns) is reduced to 100 ps bus properties. for the CNT-90 and 50 ps for the CNT-91(R). The bus transfer rate is up to 4000 Since the measurement is synchronized with triggered measurements/s in CNT-91(R).
+ 1 clock pulse (10 ns) is reduced to 100 ps bus properties. for the CNT-90 and 50 ps for the CNT-91(R). The bus transfer rate is up to 4000 Since the measurement is synchronized with triggered measurements/s in CNT-91(R).
Unpacking Safety Introduction Safety Precautions Even though we know that you are eager to All equipment that can be connected to line get going, we urge you to take a few minutes power is a potential danger to life. Handling to read through this part of the introductory restrictions imposed on such equipment chapter carefully before plugging the line...
Unpacking Safety Introduction Safety Precautions Even though we know that you are eager to All equipment that can be connected to line get going, we urge you to take a few minutes power is a potential danger to life. Handling to read through this part of the introductory restrictions imposed on such equipment chapter carefully before plugging the line...
Unpacking Safety Introduction Safety Precautions Even though we know that you are eager to All equipment that can be connected to line get going, we urge you to take a few minutes power is a potential danger to life. Handling to read through this part of the introductory restrictions imposed on such equipment chapter carefully before plugging the line...
NiCd, for instance, you should dispose o f a worn-out battery pack at an authorized recy- cling station or return it to Pendulum. Note: Individual cells cannot be replaced. USER MANUAL ● CNT 9x Series ● Rev.22 February 2020...
NiCd, for instance, you should dispose o f a worn-out battery pack at an authorized recy- cling station or return it to Pendulum. Note: Individual cells cannot be replaced. USER MANUAL ● CNT 9x Series ● Rev.22 February 2020...
NiCd, for instance, you should dispose o f a worn-out battery pack at an authorized recy- cling station or return it to Pendulum. Note: Individual cells cannot be replaced. USER MANUAL ● CNT 9x Series ● Rev.20 December 2017...
Unpacking Environmental Considerations This section provides information about the environmental impact of the product. Product End-of-Life Handling Observe the following guidelines when recycling an instrument or component: Equipment recycling Production of this equipment required the extraction and use of natural resources. The equipment may contain substances that could be harmful to the environment or human health if impropely handled at the product's end of life.
Unpacking Environmental Considerations This section provides information about the environmental impact of the product. Product End-of-Life Handling Observe the following guidelines when recycling an instrument or component: Equipment recycling Production of this equipment required the extraction and use of natural resources. The equipment may contain substances that could be harmful to the environment or human health if impropely handled at the product's end of life.
Unpacking Environmental Considerations This section provides information about the environmental impact of the product. Product End-of-Life Handling Observe the following guidelines when recycling an instrument or component: Equipment recycling Production of this equipment required the extraction and use of natural resources. The equipment may contain substances that could be harmful to the environment or human health if impropely handled at the product's end of life.
• User's Manual incomplete or damaged, file a claim with the carrier immediately. Also notify your local • Programmer's Handbook Pendulum sales or service organization in • Service Manual (CNT-91R/71B case repair or replacement may be required. only) Check List...
• User's Manual incomplete or damaged, file a claim with the carrier immediately. Also notify your local • Programmer's Handbook Pendulum sales or service organization in • Service Manual (CNT-91R/71B case repair or replacement may be required. only) Check List...
• User's Manual incomplete or damaged, file a claim with the carrier immediately. Also notify your local • Programmer's Handbook Pendulum sales or service organization in • Service Manual (CNT-91R/71B case repair or replacement may be required. only) Check List...
Battery Supply The counter can be operated in any position desired. Make sure that the air flow through ■ CNT-90 & CNT-90XL only the ventilation slots at the top, and side panels is not obstructed. Leave 5 centimeters (2 It is possible to run the counter from an op- inches) of space around the counter.
Battery Supply The counter can be operated in any position desired. Make sure that the air flow through ■ CNT-90 & CNT-90XL only the ventilation slots at the top, and side panels is not obstructed. Leave 5 centimeters (2 It is possible to run the counter from an op- inches) of space around the counter.
Battery Supply The counter can be operated in any position desired. Make sure that the air flow through ■ CNT-90 & CNT-90XL only the ventilation slots at the top, and side panels is not obstructed. Leave 5 centimeters (2 It is possible to run the counter from an op- inches) of space around the counter.
Unpacking Fold-Down Support Capacitors inside the instrument can hold their charge even if the instrument has For bench-top use, a fold-down support is been separated from all voltage sources. available for use underneath the counter. This support can also be used as a handle to carry the instrument.
Unpacking Fold-Down Support Capacitors inside the instrument can hold their charge even if the instrument has For bench-top use, a fold-down support is been separated from all voltage sources. available for use underneath the counter. This support can also be used as a handle to carry the instrument.
Unpacking Fold-Down Support Capacitors inside the instrument can hold their charge even if the instrument has For bench-top use, a fold-down support is been separated from all voltage sources. available for use underneath the counter. This support can also be used as a handle to carry the instrument.
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Unpacking Use a screwdriver as shown in the following ■ Assembling the Rackmount Kit illustration or a pair of pliers to remove the — Make sure the power cord is springs holding each foot, then push out the disconnected from the instrument. feet.
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Unpacking Use a screwdriver as shown in the following ■ Assembling the Rackmount Kit illustration or a pair of pliers to remove the — Make sure the power cord is springs holding each foot, then push out the disconnected from the instrument. feet.
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Unpacking Use a screwdriver as shown in the following ■ Assembling the Rackmount Kit illustration or a pair of pliers to remove the — Make sure the power cord is springs holding each foot, then push out the disconnected from the instrument. feet.
Using the Controls Basic Controls A more elaborate description of the front and survey, the purpose of which is to make you familiar with the layout of the instrument. rear panels including the user interface with its menu system follows after this See also the appendix.
Using the Controls Basic Controls A more elaborate description of the front and survey, the purpose of which is to make you familiar with the layout of the instrument. rear panels including the user interface with its menu system follows after this See also the appendix.
Using the Controls Basic Controls A more elaborate description of the front and survey, the purpose of which is to make you familiar with the layout of the instrument. rear panels including the user interface with its menu system follows after this See also the appendix.
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Using the Controls STAT/PLOT VALUE MEAS FUNC AUTO SET CURSOR Enters one of three Enters the normal Adjusts input trigger Menu tree for CONTROL statistics numerical voltages selecting mea- The cursor position, presentation presentation mode automatically to the surement function. marked by text modes.
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Using the Controls STAT/PLOT VALUE MEAS FUNC AUTO SET CURSOR Enters one of three Enters the normal Adjusts input trigger Menu tree for CONTROL statistics numerical voltages selecting mea- The cursor position, presentation presentation mode automatically to the surement function. marked by text modes.
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Using the Controls STAT/PLOT VALUE MEAS FUNC AUTO SET CURSOR Enters one of three Enters the normal Adjusts input trigger Menu tree for CONTROL statistics numerical voltages selecting mea- The cursor position, presentation presentation mode automatically to the surement function. marked by text modes.
OK. indicators and information boxes. RF/MICROWAVE INPUT MAIN INPUTS TRIGGER GATE INDI- CNT-90/91(R): A DICATORS CATOR The two identical DC number of optional RF coupled channels A& B prescalers are in- A pending mea-...
OK. indicators and information boxes. RF/MICROWAVE INPUT MAIN INPUTS TRIGGER GATE INDI- CNT-90/91(R): A DICATORS CATOR The two identical DC number of optional RF coupled channels A& B prescalers are in- A pending mea-...
OK. indicators and information boxes. RF/MICROWAVE INPUT MAIN INPUTS TRIGGER GATE INDI- CNT-90/91(R): A DICATORS CATOR The two identical DC number of optional RF coupled channels A& B prescalers are in- A pending mea-...
Ext. DC Connector External Reference Input GPIB Connector Part of Option 23/90 for Can be automatically selected Address set via User Options CNT-90(XL). if a signal is present and Menu. Range: 12-18 V Note the approved as timebase source, polarity.
Ext. DC Connector External Reference Input GPIB Connector Part of Option 23/90 for Can be automatically selected Address set via User Options CNT-90(XL). if a signal is present and Menu. Range: 12-18 V Note the approved as timebase source, polarity.
Ext. DC Connector External Reference Input GPIB Connector Part of Option 23/90 for Can be automatically selected Address set via User Options CNT-90(XL). if a signal is present and Menu. Range: 12-18 V Note the approved as timebase source, polarity.
Using the Controls Rear Panel Additional output frequencies Connectors (CNT-91R/71B) Protective Ground These connectors provide additional output Type Plate Terminal frequencies which are, from left to right, 100kHz, Indicates instrument This is where the protective 1MHz, 5MHz and 10MHz. type and serial number. ground wire is connected inside the instrument.
Using the Controls Rear Panel Additional output frequencies Connectors (CNT-91R/71B) Protective Ground These connectors provide additional output Type Plate Terminal frequencies which are, from left to right, 100kHz, Indicates instrument This is where the protective 1MHz, 5MHz and 10MHz. type and serial number. ground wire is connected inside the instrument.
Using the Controls Rear Panel Additional output frequencies Connectors (CNT-91R/71B) Protective Ground These connectors provide additional output Type Plate Terminal frequencies which are, from left to right, 100kHz, Indicates instrument This is where the protective 1MHz, 5MHz and 10MHz. type and serial number. ground wire is connected inside the instrument.
CPU takes place over a serial bus. Any malfunction in the UART-con-trolled communication link will be reported in a pop-up message box on the display. ■ CNT-90(XL) w. Option 23/90 The User Interface Screens have two indica- Fig. 2-3 CNT-91(R): Select measurement tors near the upper right corner of the display.
CPU takes place over a serial bus. Any malfunction in the UART-con-trolled communication link will be reported in a pop-up message box on the display. ■ CNT-90(XL) w. Option 23/90 The User Interface Screens have two indica- Fig. 2-3 CNT-91(R): Select measurement tors near the upper right corner of the display.
CPU takes place over a serial bus. Any malfunction in the UART-con-trolled communication link will be reported in a pop-up message box on the display. ■ CNT-90(XL) w. Option 23/90 The User Interface Screens have two indica- Fig. 2-3 CNT-91(R): Select measurement tors near the upper right corner of the display.
Using the Controls have selected Frequency, you can then select Timebase Ref Auto • between Frequency, Frequency Ratio and • Switch off Frequency Burst. Finally you have to decide ■ Default Settings which input channel(s) to use. An even more comprehensive preset function Autoset/Preset can be performed by recalling the factory de- fault settings.
Using the Controls have selected Frequency, you can then select Timebase Ref Auto • between Frequency, Frequency Ratio and • Switch off Frequency Burst. Finally you have to decide ■ Default Settings which input channel(s) to use. An even more comprehensive preset function Autoset/Preset can be performed by recalling the factory de- fault settings.
Using the Controls have selected Frequency, you can then select Timebase Ref Auto • between Frequency, Frequency Ratio and • Switch off Frequency Burst. Finally you have to decide ■ Default Settings which input channel(s) to use. An even more comprehensive preset function Autoset/Preset can be performed by recalling the factory de- fault settings.
Using the Controls Presentation Modes ■ STAT/PLOT If you want to treat a number of measurements ■ VALUE with statistical methods, this is the key to operate. There are three display modes available by toggling the key: • Numerical • Histogram •...
Using the Controls Presentation Modes ■ STAT/PLOT If you want to treat a number of measurements ■ VALUE with statistical methods, this is the key to operate. There are three display modes available by toggling the key: • Numerical • Histogram •...
Using the Controls Presentation Modes ■ STAT/PLOT If you want to treat a number of measurements ■ VALUE with statistical methods, this is the key to operate. There are three display modes available by toggling the key: • Numerical • Histogram •...
Using the Controls example is the setting as part of the Trig Lvl arrow indicating the direction where settings. INPUT A (B) non-displayed values have been recorded. Whenever it is possible to enter numeric val- Trend Plot ues, the keys marked with 0-9;. (decimal point) and ±...
Using the Controls example is the setting as part of the Trig Lvl arrow indicating the direction where settings. INPUT A (B) non-displayed values have been recorded. Whenever it is possible to enter numeric val- Trend Plot ues, the keys marked with 0-9;. (decimal point) and ±...
Using the Controls example is the setting as part of the Trig Lvl arrow indicating the direction where settings. INPUT A (B) non-displayed values have been recorded. Whenever it is possible to enter numeric val- Trend Plot ues, the keys marked with 0-9;. (decimal point) and ±...
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Using the Controls • Trigger Slope: positive or negative, indicated by corresponding symbols Coupling: AC or DC • Impedance: 50 or 1 M • Attenuation: 1x or 10x • Fig. 2-11 The main settings menu. Trigger: Manual or Auto •...
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Using the Controls • Trigger Slope: positive or negative, indicated by corresponding symbols Coupling: AC or DC • Impedance: 50 or 1 M • Attenuation: 1x or 10x • Fig. 2-11 The main settings menu. Trigger: Manual or Auto •...
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Using the Controls • Trigger Slope: positive or negative, indicated by corresponding symbols Coupling: AC or DC • Impedance: 50 or 1 M • Attenuation: 1x or 10x • Fig. 2-11 The main settings menu. Trigger: Manual or Auto •...
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Using the Controls start. A typical use is to clean up signals gen- erated by bouncing relay contacts. Fig. 2-14 CNT-90 & CNT-90XL: Setting arming conditions. CNT-91(R): Setting arming conditions. Fig. 2-15 Arming is the general term used for the means to control the actual start/stop of a measurement.
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Using the Controls start. A typical use is to clean up signals gen- erated by bouncing relay contacts. Fig. 2-14 CNT-90 & CNT-90XL: Setting arming conditions. CNT-91(R): Setting arming conditions. Fig. 2-15 Arming is the general term used for the means to control the actual start/stop of a measurement.
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Using the Controls start. A typical use is to clean up signals gen- erated by bouncing relay contacts. Fig. 2-14 CNT-90 & CNT-90XL: Setting arming conditions. CNT-91(R): Setting arming conditions. Fig. 2-15 Arming is the general term used for the means to control the actual start/stop of a measurement.
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Using the Controls Statistics Fig. 2-17 Entering statistics parameters. In this menu you can do the following: • Set the number of samples used for calculation of various statistical measures. • Set the number of bins in the histogram view. •...
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Using the Controls Statistics Fig. 2-17 Entering statistics parameters. In this menu you can do the following: • Set the number of samples used for calculation of various statistical measures. • Set the number of bins in the histogram view. •...
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Using the Controls Statistics Fig. 2-17 Entering statistics parameters. In this menu you can do the following: • Set the number of samples used for calculation of various statistical measures. • Set the number of bins in the histogram view. •...
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Using the Controls Miscellaneous Fig. 2-22 CNT-90XL: The 'Input C Acquisition' Fig. 2-19 CNT-90: The 'Misc' submenu. submenu. Manual means that a narrow band around the manually entered center frequency is monitored for valid input signals. This mode is compulsory...
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Using the Controls Miscellaneous Fig. 2-22 CNT-90XL: The 'Input C Acquisition' Fig. 2-19 CNT-90: The 'Misc' submenu. submenu. Manual means that a narrow band around the manually entered center frequency is monitored for valid input signals. This mode is compulsory...
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Using the Controls Miscellaneous Fig. 2-22 CNT-90XL: The 'Input C Acquisition' Fig. 2-19 CNT-90: The 'Misc' submenu. submenu. Manual means that a narrow band around the manually entered center frequency is monitored for valid input signals. This mode is compulsory...
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Using the Controls The display tells you that the Math function is ■ Math/Limit not active, so press the key once to Math Off open the formula selection menu. Select one of the five different formulas, where K, L and M are constants that the user can set to any value.
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Using the Controls The display tells you that the Math function is ■ Math/Limit not active, so press the key once to Math Off open the formula selection menu. Select one of the five different formulas, where K, L and M are constants that the user can set to any value.
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Using the Controls The display tells you that the Math function is ■ Math/Limit not active, so press the key once to Math Off open the formula selection menu. Select one of the five different formulas, where K, L and M are constants that the user can set to any value.
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Fig. 2-28 CNT-90: The User Options menu. beled to make it easier for the operator to re- member the application. Fig. 2-29 CNT-90XL & CNT-90 with Option 23/90: Fig. 2-32 The memory management menu The User Options menu. after pressing Setup.
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Fig. 2-28 CNT-90: The User Options menu. beled to make it easier for the operator to re- member the application. Fig. 2-29 CNT-90XL & CNT-90 with Option 23/90: Fig. 2-32 The memory management menu The User Options menu. after pressing Setup.
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Fig. 2-28 CNT-90: The User Options menu. beled to make it easier for the operator to re- member the application. Fig. 2-29 CNT-90XL & CNT-90 with Option 23/90: Fig. 2-32 The memory management menu The User Options menu. after pressing Setup.
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Using the Controls Dataset Menu • Recall setup Fig. 2-34 Selecting memory position for recalling The memory management menu after Fig. 2-36 a measurement setup. pressing Dataset. This feature is available in statistics mode Select the memory position from which you want to retrieve the contents in the same way only, and if has been pressed prior to...
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Using the Controls Dataset Menu • Recall setup Fig. 2-34 Selecting memory position for recalling The memory management menu after Fig. 2-36 a measurement setup. pressing Dataset. This feature is available in statistics mode Select the memory position from which you want to retrieve the contents in the same way only, and if has been pressed prior to...
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Using the Controls Dataset Menu • Recall setup Fig. 2-34 Selecting memory position for recalling The memory management menu after Fig. 2-36 a measurement setup. pressing Dataset. This feature is available in statistics mode Select the memory position from which you want to retrieve the contents in the same way only, and if has been pressed prior to...
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Frequency C or Power C is selected from the menu. MEAS FUNC The CNT-90 with Option 23/90 has a single Self-test menu. Fig. 2-39 submenu called Use Battery in Standby. By toggling this softkey you can decide if the in-...
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Frequency C or Power C is selected from the menu. MEAS FUNC The CNT-90 with Option 23/90 has a single Self-test menu. Fig. 2-39 submenu called Use Battery in Standby. By toggling this softkey you can decide if the in-...
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Frequency C or Power C is selected from the menu. MEAS FUNC The CNT-90 with Option 23/90 has a single Self-test menu. Fig. 2-39 submenu called Use Battery in Standby. By toggling this softkey you can decide if the in-...
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Using the Controls The CNT-90XL with Option 23/90 has a • Pulse Generator activates a continuous pulse combination of the two submenus mentioned train having the parameters entered in the previous menu. above. See the figure below. • Alarm can be set to be active low or active high.
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Using the Controls The CNT-90XL with Option 23/90 has a • Pulse Generator activates a continuous pulse combination of the two submenus mentioned train having the parameters entered in the previous menu. above. See the figure below. • Alarm can be set to be active low or active high.
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Using the Controls The CNT-90XL with Option 23/90 has a • Pulse Generator activates a continuous pulse combination of the two submenus mentioned train having the parameters entered in the previous menu. above. See the figure below. • Alarm can be set to be active low or active high.
Using the Controls Default Settings See page 2-16 to see how the following prepro- grammed settings are recalled by a few key- strokes. PARAMETER VALUE/SETTING PARAMETER VALUE/SETTING Math Constants K=1, L=0, M=1 Input A & B Limits Trigger Level AUTO Limit State Trigger Slope Limit Mode...
Using the Controls Default Settings See page 2-16 to see how the following prepro- grammed settings are recalled by a few key- strokes. PARAMETER VALUE/SETTING PARAMETER VALUE/SETTING Math Constants K=1, L=0, M=1 Input A & B Limits Trigger Level AUTO Limit State Trigger Slope Limit Mode...
Using the Controls Default Settings See page 2-16 to see how the following prepro- grammed settings are recalled by a few key- strokes. PARAMETER VALUE/SETTING PARAMETER VALUE/SETTING Math Constants K=1, L=0, M=1 Input A & B Limits Trigger Level AUTO Limit State Trigger Slope Limit Mode...
Input Signaling Conditioning Input Amplifier The input amplifiers are used for adapting the widely varying signals in the ambient world to the measuring logic of the Input settings menu. Fig. 3-2 timer/counter. These amplifiers have many controls, and it Impedance is essential to understand how these The input impedance can be set to 1 M...
Input Signaling Conditioning Input Amplifier The input amplifiers are used for adapting the widely varying signals in the ambient world to the measuring logic of the Input settings menu. Fig. 3-2 timer/counter. These amplifiers have many controls, and it Impedance is essential to understand how these The input impedance can be set to 1 M...
Input Signaling Conditioning Input Amplifier The input amplifiers are used for adapting the widely varying signals in the ambient world to the measuring logic of the Input settings menu. Fig. 3-2 timer/counter. These amplifiers have many controls, and it Impedance is essential to understand how these The input impedance can be set to 1 M...
Input Signaling Conditioning else when attenuation can reduce the influence of does not occur at all because the signal ampli- noise and interference. See the section dealing tude and the hysteresis band are not centered. with these matters at the end of this chapter. NOTE: For explanation of the hysteresis band, see page 4-3.
Input Signaling Conditioning else when attenuation can reduce the influence of does not occur at all because the signal ampli- noise and interference. See the section dealing tude and the hysteresis band are not centered. with these matters at the end of this chapter. NOTE: For explanation of the hysteresis band, see page 4-3.
Input Signaling Conditioning else when attenuation can reduce the influence of does not occur at all because the signal ampli- noise and interference. See the section dealing tude and the hysteresis band are not centered. with these matters at the end of this chapter. NOTE: For explanation of the hysteresis band, see page 4-3.
Input Signaling Conditioning high (>2 times the input frequency) also leads ■ Digital Lowpass Filter to a stable reading. Here one noise pulse is counted for each half-cycle. The digital LP filter utilizes the Hold-Off function described below. Use an oscilloscope for verification if you are in doubt about the frequency and waveform of With trigger Hold-Off it is possible to insert a your input signal.
Input Signaling Conditioning high (>2 times the input frequency) also leads ■ Digital Lowpass Filter to a stable reading. Here one noise pulse is counted for each half-cycle. The digital LP filter utilizes the Hold-Off function described below. Use an oscilloscope for verification if you are in doubt about the frequency and waveform of With trigger Hold-Off it is possible to insert a your input signal.
Input Signaling Conditioning high (>2 times the input frequency) also leads ■ Digital Lowpass Filter to a stable reading. Here one noise pulse is counted for each half-cycle. The digital LP filter utilizes the Hold-Off function described below. Use an oscilloscope for verification if you are in doubt about the frequency and waveform of With trigger Hold-Off it is possible to insert a your input signal.
Input Signaling Conditioning A blinking underscore indicates the cursor po- ■ Speed sition where the next digit will appear. The The Auto-function measures amplitude and arrow key is used for correction, i.e. LEFT calculates trigger level rapidly, but if you aim deleting the position preceding the current at higher measurement speed without having cursor position.
Input Signaling Conditioning A blinking underscore indicates the cursor po- ■ Speed sition where the next digit will appear. The The Auto-function measures amplitude and arrow key is used for correction, i.e. LEFT calculates trigger level rapidly, but if you aim deleting the position preceding the current at higher measurement speed without having cursor position.
Input Signaling Conditioning A blinking underscore indicates the cursor po- ■ Speed sition where the next digit will appear. The The Auto-function measures amplitude and arrow key is used for correction, i.e. LEFT calculates trigger level rapidly, but if you aim deleting the position preceding the current at higher measurement speed without having cursor position.
Input Signaling Conditioning How to Reduce or To ensure reliable measuring results, the coun- ter has the following functions to reduce or Ignore Noise and eliminate the effect of noise: - 10x input attenuator Interference - Continuously variable trigger level - Continuously variable hysteresis for some Sensitive counter input circuits are of course functions...
Input Signaling Conditioning How to Reduce or To ensure reliable measuring results, the coun- ter has the following functions to reduce or Ignore Noise and eliminate the effect of noise: - 10x input attenuator Interference - Continuously variable trigger level - Continuously variable hysteresis for some Sensitive counter input circuits are of course functions...
Input Signaling Conditioning How to Reduce or To ensure reliable measuring results, the coun- ter has the following functions to reduce or Ignore Noise and eliminate the effect of noise: - 10x input attenuator Interference - Continuously variable trigger level - Continuously variable hysteresis for some Sensitive counter input circuits are of course functions...
Input Signaling Conditioning In practice however, trigger errors caused by erroneous counts (Fig. 3-10 and Fig. 3-12) are much more important and require just the op- posite measures to be taken. To avoid erroneous counting caused by spuri- ous signals, you need to avoid excessive input signal amplitudes.
Input Signaling Conditioning In practice however, trigger errors caused by erroneous counts (Fig. 3-10 and Fig. 3-12) are much more important and require just the op- posite measures to be taken. To avoid erroneous counting caused by spuri- ous signals, you need to avoid excessive input signal amplitudes.
Input Signaling Conditioning In practice however, trigger errors caused by erroneous counts (Fig. 3-10 and Fig. 3-12) are much more important and require just the op- posite measures to be taken. To avoid erroneous counting caused by spuri- ous signals, you need to avoid excessive input signal amplitudes.
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Input Signaling Conditioning close to the middle of the signal leads to the and the AUTO trigger function determines the smallest trigger (timing) error since the signal trigger level once and enters it as a fixed trigger level. slope is steepest at the sine wave center, see Fig.
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Input Signaling Conditioning close to the middle of the signal leads to the and the AUTO trigger function determines the smallest trigger (timing) error since the signal trigger level once and enters it as a fixed trigger level. slope is steepest at the sine wave center, see Fig.
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Input Signaling Conditioning close to the middle of the signal leads to the and the AUTO trigger function determines the smallest trigger (timing) error since the signal trigger level once and enters it as a fixed trigger level. slope is steepest at the sine wave center, see Fig.
Measuring Functions Introduction to This Chapter Selecting Function This chapter describes the different measuring functions of the counter. They See also the front panel layout on page 2-3 to have been grouped as follows: find the keys mentioned in this section together Frequency measurements with short descriptions.
Measuring Functions Introduction to This Chapter Selecting Function This chapter describes the different measuring functions of the counter. They See also the front panel layout on page 2-3 to have been grouped as follows: find the keys mentioned in this section together Frequency measurements with short descriptions.
Measuring Functions Introduction to This Chapter Selecting Function This chapter describes the different measuring functions of the counter. They See also the front panel layout on page 2-3 to have been grouped as follows: find the keys mentioned in this section together Frequency measurements with short descriptions.
Measuring Functions Frequency Measurements FREQ A, B Some of the settings made above by recalling the Default Setup can also be made by activating the key. Pressing it once AUTOSET The counter measures frequency between 0 means: Hz and 400 MHz on Input A and Input B. The —...
Measuring Functions Frequency Measurements FREQ A, B Some of the settings made above by recalling the Default Setup can also be made by activating the key. Pressing it once AUTOSET The counter measures frequency between 0 means: Hz and 400 MHz on Input A and Input B. The —...
Measuring Functions Frequency Measurements FREQ A, B Some of the settings made above by recalling the Default Setup can also be made by activating the key. Pressing it once AUTOSET The counter measures frequency between 0 means: Hz and 400 MHz on Input A and Input B. The —...
Measuring Functions FREQ C BURST A, B, C A burst signal as in Fig. 4-2 has a carrier CNT-90/91(R) wave (CW) frequency and a modulation frequency, also called the pulse repetition With an optional prescaler the counter can frequency (PRF), that switches the CW signal measure up to 3, 8, 15 or 20 GHz on Input C.
Note that the resolution calculations are very different as compared to frequency measurements. See page 8-55 for details. CNT-90/91(R) BURST A, B, C With an optional prescaler the counter can measure up to 3, 8, 15 or 20 GHz on Input C.
Note that the resolution calculations are very different as compared to frequency measurements. See page 8-55 for details. CNT-90/91(R) BURST A, B, C With an optional prescaler the counter can measure up to 3, 8, 15 or 20 GHz on Input C.
Measuring Functions without further tweaking in most cases. Some- times switching from ual trig- AUTO gering in the menus is enough to INPUT A/B get stable readings. The continually calculated trigger levels will then be fixed. Set the sync delay so that it expires Fig.
Measuring Functions — Press Always try using AUTOSET first. Then the and enter a value longer Start Delay Auto Trigger and the Auto Sync functions in than the transient part of the burst pulse. combination will give satisfactory results — Select (160/400 MHz) if Frequency Limit without further tweaking in most cases.
Measuring Functions — Press Always try using AUTOSET first. Then the and enter a value longer Start Delay Auto Trigger and the Auto Sync functions in than the transient part of the burst pulse. combination will give satisfactory results — Select (160/400 MHz) if Frequency Limit without further tweaking in most cases.
Measuring Functions Frequency ■ How Does the Sync Delay Work? The sync delay works as an internal start arm- Modulated Signals ing delay: it prevents the start of a new mea- surement until the set sync delay has expired. A frequency modulated signal is a carrier See Fig.
Measuring Functions Frequency ■ How Does the Sync Delay Work? The sync delay works as an internal start arm- Modulated Signals ing delay: it prevents the start of a new mea- surement until the set sync delay has expired. A frequency modulated signal is a carrier See Fig.
Measuring Functions Frequency ■ How Does the Sync Delay Work? The sync delay works as an internal start arm- Modulated Signals ing delay: it prevents the start of a new mea- surement until the set sync delay has expired. A frequency modulated signal is a carrier See Fig.
Measuring Functions You will usually get good results with 0.1 s measuring result that is too high or too low. measurement time per sample and more than 30 samples (n 3 0). You can try out the opti- mal combination of sample size and measure- ment time for specific cases.
Measuring Functions You will usually get good results with 0.1 s measuring result that is too high or too low. measurement time per sample and more than 30 samples (n 3 0). You can try out the opti- mal combination of sample size and measure- ment time for specific cases.
Measuring Functions You will usually get good results with 0.1 s measuring result that is too high or too low. measurement time per sample and more than 30 samples (n 3 0). You can try out the opti- mal combination of sample size and measure- ment time for specific cases.
Measuring Functions like the burst measurements described earlier Δf in this manual. — Press and set SETTINGS STAT No.of Carrier Wave Frequency to 1000 or more. samples — Press and select a low value. Meas Time The carrier wave (CW) is only continuously present in a narrow amplitude band in the Press and watch Δf...
Measuring Functions like the burst measurements described earlier Δf in this manual. — Press and set SETTINGS STAT No.of Carrier Wave Frequency to 1000 or more. samples — Press and select a low value. Meas Time The carrier wave (CW) is only continuously present in a narrow amplitude band in the Press and watch Δf...
Measuring Functions like the burst measurements described earlier Δf in this manual. — Press and set SETTINGS STAT No.of Carrier Wave Frequency to 1000 or more. samples — Press and select a low value. Meas Time The carrier wave (CW) is only continuously present in a narrow amplitude band in the Press and watch Δf...
Measuring Functions Theory of Modulating Frequency The easiest way to measure the modulating Measurement frequency is after demodulation, for instance by means of a so-called RF-detector probe Reciprocal Counting (also known as a demodulator probe, e.g. Pomona type 5815) used with AC-coupling of Simple frequency counters count the number the input channel.
Measuring Functions Theory of Modulating Frequency The easiest way to measure the modulating Measurement frequency is after demodulation, for instance by means of a so-called RF-detector probe Reciprocal Counting (also known as a demodulator probe, e.g. Pomona type 5815) used with AC-coupling of Simple frequency counters count the number the input channel.
Measuring Functions Theory of Modulating Frequency The easiest way to measure the modulating Measurement frequency is after demodulation, for instance by means of a so-called RF-detector probe Reciprocal Counting (also known as a demodulator probe, e.g. Pomona type 5815) used with AC-coupling of Simple frequency counters count the number the input channel.
Measuring Functions measure the actual gate time (tg) and the When no triggering has occurred during the number of cycles (n) that occurred during this time-out, the counter will show NO SIGNAL. gate time. Measuring Speed Thereafter, the counter calculates the fre- quency according to Mr.
Measuring Functions measure the actual gate time (tg) and the When no triggering has occurred during the number of cycles (n) that occurred during this time-out, the counter will show NO SIGNAL. gate time. Measuring Speed Thereafter, the counter calculates the fre- quency according to Mr.
Measuring Functions measure the actual gate time (tg) and the When no triggering has occurred during the number of cycles (n) that occurred during this time-out, the counter will show NO SIGNAL. gate time. Measuring Speed Thereafter, the counter calculates the fre- quency according to Mr.
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Measuring Functions Function Prescaling CNT-90/91(R): Prescaling May ■ Factor Influence Measurement Time FREQ A/B (400 MHz) Prescalers do affect the minimum measure- BURST A/B (<160MHz) ment time, inasmuch as short bursts have to BURST A/B (>160MHz PERIOD A/B AVG (400 MHz)
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Measuring Functions Function Prescaling CNT-90/91(R): Prescaling May ■ Factor Influence Measurement Time FREQ A/B (400 MHz) Prescalers do affect the minimum measure- BURST A/B (<160MHz) ment time, inasmuch as short bursts have to BURST A/B (>160MHz PERIOD A/B AVG (400 MHz)
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Measuring Functions Function Prescaling CNT-90/91(R): Prescaling May ■ Factor Influence Measurement Time FREQ A/B (400 MHz) Prescalers do affect the minimum measure- BURST A/B (<160MHz) ment time, inasmuch as short bursts have to BURST A/B (>160MHz PERIOD A/B AVG (400 MHz)
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Measuring Functions ■ CNT-90/91(R): RF Signals ■ CNT-90XL: Microwave Conversion As mentioned before, a prescaler in the Measuring frequencies up to 20 GHz is possi- C-in-put divides the input frequency before it is ble with the top-performance prescaler option counted by the normal digital counting logic.
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Measuring Functions ■ CNT-90/91(R): RF Signals ■ CNT-90XL: Microwave Conversion As mentioned before, a prescaler in the Measuring frequencies up to 20 GHz is possi- C-in-put divides the input frequency before it is ble with the top-performance prescaler option counted by the normal digital counting logic.
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Measuring Functions ■ CNT-90/91(R): RF Signals ■ CNT-90XL: Microwave Conversion As mentioned before, a prescaler in the Measuring frequencies up to 20 GHz is possi- C-in-put divides the input frequency before it is ble with the top-performance prescaler option counted by the normal digital counting logic.
Measuring Functions — Preacquisition — Frequency modulation causes an unstable The purpose of this process is to find out 'n' value calculation. Action: increase the if there is a measurable signal present at measuring time. the input, and if so, fix the LO frequency Power measurement that gives rise to an IF signal above a cer- Another feature in this instrument is the abil-...
Measuring Functions — Preacquisition — Frequency modulation causes an unstable The purpose of this process is to find out 'n' value calculation. Action: increase the if there is a measurable signal present at measuring time. the input, and if so, fix the LO frequency Power measurement that gives rise to an IF signal above a cer- Another feature in this instrument is the abil-...
Measuring Functions — Preacquisition — Frequency modulation causes an unstable The purpose of this process is to find out 'n' value calculation. Action: increase the if there is a measurable signal present at measuring time. the input, and if so, fix the LO frequency Power measurement that gives rise to an IF signal above a cer- Another feature in this instrument is the abil-...
Measuring Functions Single A, B Back-to-Back Thus a series of consecutive frequency aver- age measurements without dead time can be made in order to fulfil the requirements for ■ CNT-91(R) only correct calculation of Allan variance or This function benefits from the basic deviation.
Measuring Functions Single A, B Back-to-Back Thus a series of consecutive frequency aver- age measurements without dead time can be made in order to fulfil the requirements for ■ CNT-91(R) only correct calculation of Allan variance or This function benefits from the basic deviation.
Measuring Functions Single A, B Back-to-Back Thus a series of consecutive frequency aver- age measurements without dead time can be made in order to fulfil the requirements for ■ CNT-91(R) only correct calculation of Allan variance or This function benefits from the basic deviation.
Measuring Functions Time Measurements Introduction Triggering The set trigger level and trigger slope define Measuring the time between a start and a stop the start and stop triggering. condition on two separate channels is the basis for all time interval measurements. In addition is on, the counter sets the trigger level Auto to the fundamental function...
Measuring Functions Time Measurements Introduction Triggering The set trigger level and trigger slope define Measuring the time between a start and a stop the start and stop triggering. condition on two separate channels is the basis for all time interval measurements. In addition is on, the counter sets the trigger level Auto to the fundamental function...
Measuring Functions Time Measurements Introduction Triggering The set trigger level and trigger slope define Measuring the time between a start and a stop the start and stop triggering. condition on two separate channels is the basis for all time interval measurements. In addition is on, the counter sets the trigger level Auto to the fundamental function...
Measuring Functions CNT-91(R): Time that virtually moves the trigger points by half the hysteresis band. Interval Error (TIE) Time Interval This function can be found under the function menu and is only applicable to clock Time signals, not data signals. All time interval functions can be found under the function menu Time.
Measuring Functions CNT-91(R): Time that virtually moves the trigger points by half the hysteresis band. Interval Error (TIE) Time Interval This function can be found under the function menu and is only applicable to clock Time signals, not data signals. All time interval functions can be found under the function menu Time.
Measuring Functions CNT-91(R): Time that virtually moves the trigger points by half the hysteresis band. Interval Error (TIE) Time Interval This function can be found under the function menu and is only applicable to clock Time signals, not data signals. All time interval functions can be found under the function menu Time.
Measuring Functions The counter measures the time from when the See the paragraph on Auto Trigger (page 4-19) signal passes 10 % of its amplitude to when it to find out how overshoot or ringing may 71B- fect your measurement. passes 90 % of its amplitude.
Measuring Functions The counter measures the time from when the See the paragraph on Auto Trigger (page 4-19) signal passes 10 % of its amplitude to when it to find out how overshoot or ringing may 71B- fect your measurement. passes 90 % of its amplitude.
Measuring Functions The counter measures the time from when the See the paragraph on Auto Trigger (page 4-19) signal passes 10 % of its amplitude to when it to find out how overshoot or ringing may 71B- fect your measurement. passes 90 % of its amplitude.
Measuring Functions Overdrive and Pulse The total measurement time will be doubled compared to a single Rounding measurement, because "Duty" requires 2 measurement steps. Additional timing errors may be caused by triggering with insufficient overdrive, see Fig- ure 4-18. When triggering occurs too close to Measurement Errors the maximum voltage of a pulse, two phenom- ena may influence your measurement uncer-...
Measuring Functions Overdrive and Pulse The total measurement time will be doubled compared to a single Rounding measurement, because "Duty" requires 2 measurement steps. Additional timing errors may be caused by triggering with insufficient overdrive, see Fig- ure 4-18. When triggering occurs too close to Measurement Errors the maximum voltage of a pulse, two phenom- ena may influence your measurement uncer-...
Measuring Functions Overdrive and Pulse The total measurement time will be doubled compared to a single Rounding measurement, because "Duty" requires 2 measurement steps. Additional timing errors may be caused by triggering with insufficient overdrive, see Fig- ure 4-18. When triggering occurs too close to Measurement Errors the maximum voltage of a pulse, two phenom- ena may influence your measurement uncer-...
Measuring Functions Auto Trigger Auto Trigger is a great help especially when you measure on unknown signals. However, overshoot and ringing may cause Auto choose slightly wrong MIN and MAX signal levels. This does not affect measurements like frequency, but transition time measurements may be affected.
Measuring Functions Auto Trigger Auto Trigger is a great help especially when you measure on unknown signals. However, overshoot and ringing may cause Auto choose slightly wrong MIN and MAX signal levels. This does not affect measurements like frequency, but transition time measurements may be affected.
Measuring Functions Auto Trigger Auto Trigger is a great help especially when you measure on unknown signals. However, overshoot and ringing may cause Auto choose slightly wrong MIN and MAX signal levels. This does not affect measurements like frequency, but transition time measurements may be affected.
Measuring Functions Phase What is Phase? channel B are enough to calculate the result, including sign. Phase is the time difference between two sig- nals of the same frequency, expressed as an Resolution angle. Fig. 4-19 Phase delay. The traditional method to measure phase de- Fig.
Measuring Functions Phase What is Phase? channel B are enough to calculate the result, including sign. Phase is the time difference between two sig- nals of the same frequency, expressed as an Resolution angle. Fig. 4-19 Phase delay. The traditional method to measure phase de- Fig.
Measuring Functions Phase What is Phase? channel B are enough to calculate the result, including sign. Phase is the time difference between two sig- nals of the same frequency, expressed as an Resolution angle. Fig. 4-19 Phase delay. The traditional method to measure phase de- Fig.
Measuring Functions The trigger noise error consists of start and Inaccuracies stop trigger errors that should be added. For sinusoidal input signals each error is: The inaccuracy of Phase A-B measurements depends on several external parameters: — Input signal frequency —...
Measuring Functions The trigger noise error consists of start and Inaccuracies stop trigger errors that should be added. For sinusoidal input signals each error is: The inaccuracy of Phase A-B measurements depends on several external parameters: — Input signal frequency —...
Measuring Functions The trigger noise error consists of start and Inaccuracies stop trigger errors that should be added. For sinusoidal input signals each error is: The inaccuracy of Phase A-B measurements depends on several external parameters: — Input signal frequency —...
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Measuring Functions and calculate the mean value from a number the recovery point -15 mV. This kind of tim- of samples. ing error is cancelled out by using hysteresis compensation. ■ Systematic Errors in Phase Hysteresis compensation means that the mi- Measurements crocomputer can offset the trigger level so Systematic errors consist o f 3 elements:...
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Measuring Functions and calculate the mean value from a number the recovery point -15 mV. This kind of tim- of samples. ing error is cancelled out by using hysteresis compensation. ■ Systematic Errors in Phase Hysteresis compensation means that the mi- Measurements crocomputer can offset the trigger level so Systematic errors consist o f 3 elements:...
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Measuring Functions and calculate the mean value from a number the recovery point -15 mV. This kind of tim- of samples. ing error is cancelled out by using hysteresis compensation. ■ Systematic Errors in Phase Hysteresis compensation means that the mi- Measurements crocomputer can offset the trigger level so Systematic errors consist o f 3 elements:...
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Measuring Functions Vpeak (A) Vpeak (B) Worst case calibration has to be repeated if the systematic error frequency or the amplitude changes. 4°+4° 8° 150 mV 150 mV 1.5 V 150 mV 0.4°+4° = 4.4° Method 2: 1.5 V 1.5V 0.4°+0.4°=0.8°...
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Measuring Functions Vpeak (A) Vpeak (B) Worst case calibration has to be repeated if the systematic error frequency or the amplitude changes. 4°+4° 8° 150 mV 150 mV 1.5 V 150 mV 0.4°+4° = 4.4° Method 2: 1.5 V 1.5V 0.4°+0.4°=0.8°...
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Measuring Functions Vpeak (A) Vpeak (B) Worst case calibration has to be repeated if the systematic error frequency or the amplitude changes. 4°+4° 8° 150 mV 150 mV 1.5 V 150 mV 0.4°+4° = 4.4° Method 2: 1.5 V 1.5V 0.4°+0.4°=0.8°...
Measuring Functions Totalize [CNT-91(R) only] Totalize in General TOT A MAN This mode enables you to totalize (count) the functions add up the number of Totalize number of trigger events on Channel A. trigger events on the two counter inputs A Aux- iliary calculated parameters are and B.
Measuring Functions Totalize [CNT-91(R) only] Totalize in General TOT A MAN This mode enables you to totalize (count) the functions add up the number of Totalize number of trigger events on Channel A. trigger events on the two counter inputs A Aux- iliary calculated parameters are and B.
Measuring Functions Totalize [CNT-91(R) only] Totalize in General TOT A MAN This mode enables you to totalize (count) the functions add up the number of Totalize number of trigger events on Channel A. trigger events on the two counter inputs A Aux- iliary calculated parameters are and B.
Measuring Functions TOT A-B MAN Unlike the manual functions, the Totalize armed variants resemble the other measure- ment functions inasmuch as they allow block This mode enables you to calculate the and pacing control. Consequently all the Sta- difference between trigger events on Channel tistics functions are available.
Measuring Functions TOT A-B MAN Unlike the manual functions, the Totalize armed variants resemble the other measure- ment functions inasmuch as they allow block This mode enables you to calculate the and pacing control. Consequently all the Sta- difference between trigger events on Channel tistics functions are available.
Measuring Functions TOT A-B MAN Unlike the manual functions, the Totalize armed variants resemble the other measure- ment functions inasmuch as they allow block This mode enables you to calculate the and pacing control. Consequently all the Sta- difference between trigger events on Channel tistics functions are available.
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Measuring Functions Stop Channel Stop Delay — — Select Decide if you need to insert a delay (10 ns - 2 s) during which the gate will not Stop Slope — respond to the control signal on the Select NEG (marked by a falling edge Stop Channel.
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Measuring Functions Stop Channel Stop Delay — — Select Decide if you need to insert a delay (10 ns - 2 s) during which the gate will not Stop Slope — respond to the control signal on the Select NEG (marked by a falling edge Stop Channel.
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Measuring Functions Stop Channel Stop Delay — — Select Decide if you need to insert a delay (10 ns - 2 s) during which the gate will not Stop Slope — respond to the control signal on the Select NEG (marked by a falling edge Stop Channel.
Measuring Functions Voltage , Vmin, V Press . The counter can MEAS FUNC Volt measure the input voltage levels V and V on DC-input voltages and on repetitive signals between 1 Hz and 400 MHz. Fig. 4-21 The voltage is determined The default low frequency limit is 20 Hz but by making a series of trigger can be changed via the...
Measuring Functions Voltage , Vmin, V Press . The counter can MEAS FUNC Volt measure the input voltage levels V and V on DC-input voltages and on repetitive signals between 1 Hz and 400 MHz. Fig. 4-21 The voltage is determined The default low frequency limit is 20 Hz but by making a series of trigger can be changed via the...
Measuring Functions Voltage , Vmin, V Press . The counter can MEAS FUNC Volt measure the input voltage levels V and V on DC-input voltages and on repetitive signals between 1 Hz and 400 MHz. Fig. 4-21 The voltage is determined The default low frequency limit is 20 Hz but by making a series of trigger can be changed via the...
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Measuring Functions When the waveform (e.g. sinusoidal, triangu- lar, square) of the input signal is known, its crest factor, defined as the quotient (Q ) of the peak (V ) and RMS (V values, can be rms) used to set the constant K in the mathematical function K*X+L.
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Measuring Functions When the waveform (e.g. sinusoidal, triangu- lar, square) of the input signal is known, its crest factor, defined as the quotient (Q ) of the peak (V ) and RMS (V values, can be rms) used to set the constant K in the mathematical function K*X+L.
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Measuring Functions When the waveform (e.g. sinusoidal, triangu- lar, square) of the input signal is known, its crest factor, defined as the quotient (Q ) of the peak (V ) and RMS (V values, can be rms) used to set the constant K in the mathematical function K*X+L.
Pulsed Signals [CNT-90 XL option 28 only] Start Delay: internal signals may need some time to be properly NTRODUCTION established. Start delay is useful to skip initial signal transient response to make sure that measurement starts when signal is stable.
Measuring Functions Pulsed Signals [CNT-90 XL option 28 only] Start Delay: internal signals may need some time to be properly NTRODUCTION established. Start delay is useful to skip initial signal transient response to make sure that measurement starts when signal is stable.
Measuring Functions Pulsed Signals [CNT-90 XL option 28 only] Start Delay: internal signals may need some time to be properly NTRODUCTION established. Start delay is useful to skip initial signal transient response to make sure that measurement starts when signal is stable.
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SETTINGS Pulsed RF Start Delay ELECTING ULSED SETTINGS Pulsed RF Meas Time MEASUREMENTS SETTINGS Pulsed RF Sensitivity If Option 28 is installed in CNT-90XL, the Pulsed RF measurements are found by pressing the MEAS key and selecting Pulsed RF: The various Pulsed RF parameters are thereafter displayed: - Frequency in pulse - Repetition (PRI and PRF)
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Measuring Functions Frequency in Pulse Note: For very short pulses (nanoseconds and lower microseconds), the resolution is limited in a single shot measurement (Values mode). To improve resolution, you should switch to STAT mode and do Statistical measurements and read the Mean Frequency value. For example 100 samples average will give one additional display digit and 10000 samples will give two additional digits.
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Measuring Functions Frequency in Pulse Note: For very short pulses (nanoseconds and lower microseconds), the resolution is limited in a single shot measurement (Values mode). To improve resolution, you should switch to STAT mode and do Statistical measurements and read the Mean Frequency value. For example 100 samples average will give one additional display digit and 10000 samples will give two additional digits.
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ULSE IDTH Select Positive Pulse Width measurement via the MEAS →Pulsed RF →Width →Pos →C Set corresponding measurement settings in the following menus: - SETTINGS → Pulsed RF → Sensitivity SETTINGS →Pulsed RF →Sensitivity. SETTINGS →Misc →Input C Acq →Center frequency ULSE IDTH Select Negative Pulse Width measurement via the...
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Measuring Functions (this function is also available via the SETTINGS Pulsed RF Start Delay SETTINGS Pulsed RF Meas Time menu). MEAS → Repetition → PRI →C SETTINGS Pulsed RF Sensitivity Set corresponding masureent settings in the following menus: SETTINGS →...
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Measuring Functions (this function is also available via the SETTINGS Pulsed RF Start Delay SETTINGS Pulsed RF Meas Time menu). MEAS → Repetition → PRI →C SETTINGS Pulsed RF Sensitivity Set corresponding masureent settings in the following menus: SETTINGS →...
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OWER CNT-90XL option 28 is also able to measure the power within pulses by selecting the function in the appropriate menu: MEAS → Pulsed RF → Power ON → C Set corresponding measurement settings in the following menus: SETTINGS Pulsed RF Start Delay. SETTINGS ...
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Measuring Functions ACTOR Select Negative duty factor measurement via the Select Pulse Repetition Frequency measurement via the MEAS → Pulsed RF → Width → Duty Factor Neg → C MEAS Pulsed RF Repetition PRF C. Set corresponding measurement settings in the following menus: Set corresponding measurement settings in the following menus: SETTINGS ...
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Measuring Functions ACTOR Select Negative duty factor measurement via the Select Pulse Repetition Frequency measurement via the MEAS → Pulsed RF → Width → Duty Factor Neg → C MEAS Pulsed RF Repetition PRF C. Set corresponding measurement settings in the following menus: Set corresponding measurement settings in the following menus: SETTINGS ...
Measurement Control About This Chapter The exceptions are Frequency Period Average. This chapter explains how you can control is not relevant for V Single Average the start and stop of measurements and what or V measurements. you can obtain by doing so. The chapter starts by explaining the keys and the Hold/Run &...
Measurement Control About This Chapter The exceptions are Frequency Period Average. This chapter explains how you can control is not relevant for V Single Average the start and stop of measurements and what or V measurements. you can obtain by doing so. The chapter starts by explaining the keys and the Hold/Run &...
Measurement Control About This Chapter The exceptions are Frequency Period Average. This chapter explains how you can control is not relevant for V Single Average the start and stop of measurements and what or V measurements. you can obtain by doing so. The chapter starts by explaining the keys and the Hold/Run &...
Measurement Control Arming is somewhat complicated yet gives the flexibility to perform a measurement on a specific portion of a complex signal, like a frequency measurement on the color burst contained in a composite video signal. Other examples of arming can be found later in this chapter, starting on page 5-9.
Measurement Control Arming is somewhat complicated yet gives the flexibility to perform a measurement on a specific portion of a complex signal, like a frequency measurement on the color burst contained in a composite video signal. Other examples of arming can be found later in this chapter, starting on page 5-9.
Measurement Control Arming is somewhat complicated yet gives the flexibility to perform a measurement on a specific portion of a complex signal, like a frequency measurement on the color burst contained in a composite video signal. Other examples of arming can be found later in this chapter, starting on page 5-9.
Measurement Control Controlling Measurement Timing The Measurement Process — The set measurement time has expired (ap- plies to Frequency Period Average measurements only). Basic Free-running Measurements — The input signal fulfils the stop trigger Since these counters use the reciprocal count- conditions, normally when it passes the ing technique, they always synchronize the trigger window the second time.
Measurement Control Controlling Measurement Timing The Measurement Process — The set measurement time has expired (ap- plies to Frequency Period Average measurements only). Basic Free-running Measurements — The input signal fulfils the stop trigger Since these counters use the reciprocal count- conditions, normally when it passes the ing technique, they always synchronize the trigger window the second time.
Measurement Control Controlling Measurement Timing The Measurement Process — The set measurement time has expired (ap- plies to Frequency Period Average measurements only). Basic Free-running Measurements — The input signal fulfils the stop trigger Since these counters use the reciprocal count- conditions, normally when it passes the ing technique, they always synchronize the trigger window the second time.
Measurement Control case. The best case is when the displayed A block is a collection of consecutive mea- value is 10000000. Then the quantization res- surements, the results of which are stored in olution corresponds to 0.5 LSD units. local memory for statistics or plotting pur- poses menu) or for later trans-...
Measurement Control case. The best case is when the displayed A block is a collection of consecutive mea- value is 10000000. Then the quantization res- surements, the results of which are stored in olution corresponds to 0.5 LSD units. local memory for statistics or plotting pur- poses menu) or for later trans-...
Measurement Control case. The best case is when the displayed A block is a collection of consecutive mea- value is 10000000. Then the quantization res- surements, the results of which are stored in olution corresponds to 0.5 LSD units. local memory for statistics or plotting pur- poses menu) or for later trans-...
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Measurement Control Arming can also be used to qualify the stop of — A selected part of a complex waveform a measurement. This is called "stop arming" as signal. opposed to the more common "start arming". Signal sources that generate complex wave forms like pulsed RF, pulse bursts, TV line When you use arming, you disable the normal signals, or sweep signals, usually also produce...
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Measurement Control Arming can also be used to qualify the stop of — A selected part of a complex waveform a measurement. This is called "stop arming" as signal. opposed to the more common "start arming". Signal sources that generate complex wave forms like pulsed RF, pulse bursts, TV line When you use arming, you disable the normal signals, or sweep signals, usually also produce...
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Measurement Control Arming can also be used to qualify the stop of — A selected part of a complex waveform a measurement. This is called "stop arming" as signal. opposed to the more common "start arming". Signal sources that generate complex wave forms like pulsed RF, pulse bursts, TV line When you use arming, you disable the normal signals, or sweep signals, usually also produce...
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Measurement Control — Press and adjust the settings so INPUT B that the unique trigger point can be de- tected. Normally coupling and trigger level should be preferred. — Activate start arming with or without delay on input B via the menu.
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Measurement Control — Press and adjust the settings so INPUT B that the unique trigger point can be de- tected. Normally coupling and trigger level should be preferred. — Activate start arming with or without delay on input B via the menu.
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Measurement Control — Press and adjust the settings so INPUT B that the unique trigger point can be de- tected. Normally coupling and trigger level should be preferred. — Activate start arming with or without delay on input B via the menu.
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Measurement Control PRESS DISPLAY RESTART HOLD? START WAIT FOR DELAY? ARMING EXT SIGNAL WAIT FOR INPUT WAIT PRESET TIME SIGNAL TO TRIGGER START OF MEASUREMENT WAIT PRESET TIME TRIGGER HOLD-OFF? WAIT FOR STOP EXT. SIGNAL ARMNG? END OF PRESET MEASURING TIME WAIT FOR INPUT SIGNAL TO TRIGGER STOP...
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Measurement Control PRESS DISPLAY RESTART HOLD? START WAIT FOR DELAY? ARMING EXT SIGNAL WAIT FOR INPUT WAIT PRESET TIME SIGNAL TO TRIGGER START OF MEASUREMENT WAIT PRESET TIME TRIGGER HOLD-OFF? WAIT FOR STOP EXT. SIGNAL ARMNG? END OF PRESET MEASURING TIME WAIT FOR INPUT SIGNAL TO TRIGGER STOP...
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Measurement Control PRESS DISPLAY RESTART HOLD? START WAIT FOR DELAY? ARMING EXT SIGNAL WAIT FOR INPUT WAIT PRESET TIME SIGNAL TO TRIGGER START OF MEASUREMENT WAIT PRESET TIME TRIGGER HOLD-OFF? WAIT FOR STOP EXT. SIGNAL ARMNG? END OF PRESET MEASURING TIME WAIT FOR INPUT SIGNAL TO TRIGGER STOP...
Measurement Control Arming Setup Time Arming Examples The arming logic needs a setup time of about Introduction to Arming 5 nanoseconds before the counter is really Examples armed; see Fig. 5-6. The following arming examples are available: #1 Measuring the first pulse in a burst #2 Measuring the second pulse in a burst #3 Measuring the time between pulse #1 and #4 in a burst...
Measurement Control Arming Setup Time Arming Examples The arming logic needs a setup time of about Introduction to Arming 5 nanoseconds before the counter is really Examples armed; see Fig. 5-6. The following arming examples are available: #1 Measuring the first pulse in a burst #2 Measuring the second pulse in a burst #3 Measuring the time between pulse #1 and #4 in a burst...
Measurement Control Arming Setup Time Arming Examples The arming logic needs a setup time of about Introduction to Arming 5 nanoseconds before the counter is really Examples armed; see Fig. 5-6. The following arming examples are available: #1 Measuring the first pulse in a burst #2 Measuring the second pulse in a burst #3 Measuring the time between pulse #1 and #4 in a burst...
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Measurement Control ■ B. Synchronization Using Start Arming However, the quick and simple method The SYNC signal can be directly used to arm described first does not employ arming at all the measurement. This requires that the leading but rather draws on the fact that a counter of edge of the SYNC signal occurs more than 5 this type tends to self-synchronize its internal nanoseconds before the leading edge of the...
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Measurement Control ■ B. Synchronization Using Start Arming However, the quick and simple method The SYNC signal can be directly used to arm described first does not employ arming at all the measurement. This requires that the leading but rather draws on the fact that a counter of edge of the SYNC signal occurs more than 5 this type tends to self-synchronize its internal nanoseconds before the leading edge of the...
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Measurement Control ■ B. Synchronization Using Start Arming However, the quick and simple method The SYNC signal can be directly used to arm described first does not employ arming at all the measurement. This requires that the leading but rather draws on the fact that a counter of edge of the SYNC signal occurs more than 5 this type tends to self-synchronize its internal nanoseconds before the leading edge of the...
Measurement Control Set the time delay to a time longer than the If the SYNC-pulse timing is not so suitable as duration of a pulse burst and shorter than the in the above measurement example, then repetition time of the pulse bursts. See Fig.
Measurement Control Set the time delay to a time longer than the If the SYNC-pulse timing is not so suitable as duration of a pulse burst and shorter than the in the above measurement example, then repetition time of the pulse bursts. See Fig.
Measurement Control Set the time delay to a time longer than the If the SYNC-pulse timing is not so suitable as duration of a pulse burst and shorter than the in the above measurement example, then repetition time of the pulse bursts. See Fig.
Measurement Control #3 Measuring the Time Between period starts synchronously with the start trigger event. The Hold Off time should be set Burst Pulse #1 and #4 to expire somewhere between pulse number 3 In the previous examples, the synchronization and 4, see Fig.
Measurement Control #3 Measuring the Time Between period starts synchronously with the start trigger event. The Hold Off time should be set Burst Pulse #1 and #4 to expire somewhere between pulse number 3 In the previous examples, the synchronization and 4, see Fig.
Measurement Control #3 Measuring the Time Between period starts synchronously with the start trigger event. The Hold Off time should be set Burst Pulse #1 and #4 to expire somewhere between pulse number 3 In the previous examples, the synchronization and 4, see Fig.
Measurement Control You must distinguish between two different types of measurements called free-running and repetitive sampling. ■ Free-Running Measurements Free-running measurements are performed over a longer period, e.g., to measure the sta-bility over 24 hours of oscillators, to measure initial drift of a generator during a 30-minute warm-up Using both...
Measurement Control You must distinguish between two different types of measurements called free-running and repetitive sampling. ■ Free-Running Measurements Free-running measurements are performed over a longer period, e.g., to measure the sta-bility over 24 hours of oscillators, to measure initial drift of a generator during a 30-minute warm-up Using both...
Measurement Control You must distinguish between two different types of measurements called free-running and repetitive sampling. ■ Free-Running Measurements Free-running measurements are performed over a longer period, e.g., to measure the sta-bility over 24 hours of oscillators, to measure initial drift of a generator during a 30-minute warm-up Using both...
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Measurement Control the time between each sample is ap- proximately 104-108 s. ■ Repetitive Sampling Profiling The measurement setup just described will not work when the profiling demands less than 4 s intervals between samples. How to do a VCO step response profiling with 100 samples during a time of 10 ms.
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Measurement Control the time between each sample is ap- proximately 104-108 s. ■ Repetitive Sampling Profiling The measurement setup just described will not work when the profiling demands less than 4 s intervals between samples. How to do a VCO step response profiling with 100 samples during a time of 10 ms.
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Measurement Control the time between each sample is ap- proximately 104-108 s. ■ Repetitive Sampling Profiling The measurement setup just described will not work when the profiling demands less than 4 s intervals between samples. How to do a VCO step response profiling with 100 samples during a time of 10 ms.
Process Introduction enter the constants K, L and M and how to select the formula that best suits your need. Three different ways to process a measuring The default values of K, L and M are chosen result are available: Averaging, Mathematics so that the measurement result is not affected and Statistics.
Process Introduction enter the constants K, L and M and how to select the formula that best suits your need. Three different ways to process a measuring The default values of K, L and M are chosen result are available: Averaging, Mathematics so that the measurement result is not affected and Statistics.
Process Introduction enter the constants K, L and M and how to select the formula that best suits your need. Three different ways to process a measuring The default values of K, L and M are chosen result are available: Averaging, Mathematics so that the measurement result is not affected and Statistics.
Process By changing the constant K you can scale the result instead. Use the expression if you want the re- X/M-1 sult to be displayed as a relative deviation. It is defined as the square root of the Allan variance. The number N in the expressions above can assume any value between 2 and 2*10 Statistics...
Process By changing the constant K you can scale the result instead. Use the expression if you want the re- X/M-1 sult to be displayed as a relative deviation. It is defined as the square root of the Allan variance. The number N in the expressions above can assume any value between 2 and 2*10 Statistics...
Process By changing the constant K you can scale the result instead. Use the expression if you want the re- X/M-1 sult to be displayed as a relative deviation. It is defined as the square root of the Allan variance. The number N in the expressions above can assume any value between 2 and 2*10 Statistics...
Process — Here are a few tips to speed up the Note that the six statistic measures are calculated and displayed process: simultaneously only in the non-graphic — Do not use a longer measuring time than presentation mode under STAT/PLOT. necessary for the required resolution.
Process — Here are a few tips to speed up the Note that the six statistic measures are calculated and displayed process: simultaneously only in the non-graphic — Do not use a longer measuring time than presentation mode under STAT/PLOT. necessary for the required resolution.
Process — Here are a few tips to speed up the Note that the six statistic measures are calculated and displayed process: simultaneously only in the non-graphic — Do not use a longer measuring time than presentation mode under STAT/PLOT. necessary for the required resolution.
Process vantage when you measure medium or long Confidence limits = ks time instabilities. Here averaging works as a Where: smoothing function, eliminating the effect of = standard deviation jitter. k = 1 for a confidence level of 68.3% (1 limits) The signal in Fig.
Process vantage when you measure medium or long Confidence limits = ks time instabilities. Here averaging works as a Where: smoothing function, eliminating the effect of = standard deviation jitter. k = 1 for a confidence level of 68.3% (1 limits) The signal in Fig.
Process vantage when you measure medium or long Confidence limits = ks time instabilities. Here averaging works as a Where: smoothing function, eliminating the effect of = standard deviation jitter. k = 1 for a confidence level of 68.3% (1 limits) The signal in Fig.
Process • To improve a design, it might be necessary to No action taken. indicator is OFF. In all analyze the distribution. Such measurements as other behavior modes, the indicator is well as trend analysis can be performed by ON and non-flashing, unless the limits set in means of the built in graphic capability - tog- Limit Mode menu have been crossed.
Process • To improve a design, it might be necessary to No action taken. indicator is OFF. In all analyze the distribution. Such measurements as other behavior modes, the indicator is well as trend analysis can be performed by ON and non-flashing, unless the limits set in means of the built in graphic capability - tog- Limit Mode menu have been crossed.
Process • To improve a design, it might be necessary to No action taken. indicator is OFF. In all analyze the distribution. Such measurements as other behavior modes, the indicator is well as trend analysis can be performed by ON and non-flashing, unless the limits set in means of the built in graphic capability - tog- Limit Mode menu have been crossed.
Process area. Values that fall outside the display area • Above are represented by a "<"at the left edge or a ">" Results above the set lower limit will pass. A at the right edge. flashing symbol on the display reports that the measurement result has been below the The location of the bars is fixed, so the "in- lower limit at least once since the measurement...
Process area. Values that fall outside the display area • Above are represented by a "<"at the left edge or a ">" Results above the set lower limit will pass. A at the right edge. flashing symbol on the display reports that the measurement result has been below the The location of the bars is fixed, so the "in- lower limit at least once since the measurement...
Process area. Values that fall outside the display area • Above are represented by a "<"at the left edge or a ">" Results above the set lower limit will pass. A at the right edge. flashing symbol on the display reports that the measurement result has been below the The location of the bars is fixed, so the "in- lower limit at least once since the measurement...
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Performance Check General Information rather, it is concerned primarily with those parts of the instrument which are essential for determining the function of WARNING: Before turning on the in- the instrument. strument, ensure that it has been It is not necessary to remove the instrument installed in accordance with the In- cover to perform this procedure.
Performance Check General Information rather, it is concerned primarily with those parts of the instrument which are essential for determining the function of WARNING: Before turning on the in- the instrument. strument, ensure that it has been It is not necessary to remove the instrument installed in accordance with the In- cover to perform this procedure.
Performance Check General Information rather, it is concerned primarily with those parts of the instrument which are essential for determining the function of WARNING: Before turning on the in- the instrument. strument, ensure that it has been It is not necessary to remove the instrument installed in accordance with the In- cover to perform this procedure.
Performance Check Front Panel that something changes on the display when you press a key. Consequently you can press Controls the keys in almost any order without paying attention to the exact response, but for those who want to be more systematic there is a ta- Internal Self-Tests ble overleaf, where all keys are exercised at least once.
Performance Check Front Panel that something changes on the display when you press a key. Consequently you can press Controls the keys in almost any order without paying attention to the exact response, but for those who want to be more systematic there is a ta- Internal Self-Tests ble overleaf, where all keys are exercised at least once.
Performance Check Front Panel that something changes on the display when you press a key. Consequently you can press Controls the keys in almost any order without paying attention to the exact response, but for those who want to be more systematic there is a ta- Internal Self-Tests ble overleaf, where all keys are exercised at least once.
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Performance Check Key(s) Display Notes STANDBY Red standby LED On (Key common to ON) Backlight On Red standby LED Off (Key common to STANDBY) INPUT A Input A: Menu for setting Slope, Coupling, Impedance etc. Trig Trig: xy mV Menu for entering numeric values in V or mV 0.123V Trig: 0.123 V ◄...
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Performance Check Key(s) Display Notes STANDBY Red standby LED On (Key common to ON) Backlight On Red standby LED Off (Key common to STANDBY) INPUT A Input A: Menu for setting Slope, Coupling, Impedance etc. Trig Trig: xy mV Menu for entering numeric values in V or mV 0.123V Trig: 0.123 V ◄...
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Performance Check Key(s) Display Notes STANDBY Red standby LED On (Key common to ON) Backlight On Red standby LED Off (Key common to STANDBY) INPUT A Input A: Menu for setting Slope, Coupling, Impedance etc. Trig Trig: xy mV Menu for entering numeric values in V or mV 0.123V Trig: 0.123 V ◄...
Performance Check Key(s) Display Notes MEAN: VALUE Stat parameters disappear Table 7-2 Keyboard test Short Form — Set the input impedance to 50 on the oscilloscope. Specification Test — Adjust the amplitude according to the fol- lowing table. Read the level on the oscilloscope.
Performance Check Key(s) Display Notes MEAN: VALUE Stat parameters disappear Table 7-2 Keyboard test Short Form — Set the input impedance to 50 on the oscilloscope. Specification Test — Adjust the amplitude according to the fol- lowing table. Read the level on the oscilloscope.
Performance Check Key(s) Display Notes MEAN: VALUE Stat parameters disappear Table 7-2 Keyboard test Short Form — Set the input impedance to 50 on the oscilloscope. Specification Test — Adjust the amplitude according to the fol- lowing table. Read the level on the oscilloscope.
Performance Check Voltage — Press EXIT/OK. — Connect a sinusoidal signal to Input A — Recall the DEFAULT settings. with an amplitude of 4.000 Vpp and a — Press MEAS FUNC Volt Vpp A frequency of 100 kHz. —...
Performance Check Voltage — Press EXIT/OK. — Connect a sinusoidal signal to Input A — Recall the DEFAULT settings. with an amplitude of 4.000 Vpp and a — Press MEAS FUNC Volt Vpp A frequency of 100 kHz. —...
Performance Check Voltage — Press EXIT/OK. — Connect a sinusoidal signal to Input A — Recall the DEFAULT settings. with an amplitude of 4.000 Vpp and a — Press MEAS FUNC Volt Vpp A frequency of 100 kHz. —...
Performance Check Trigger Indicators vs. Trigger Levels Trigger Level Trigger Indicator Pass (manually set) Input A Input B +1 V 0.0 V 0.5 V blinking Table 7-4 Trigger indicator check. NOTE: This test must be performed in the verify by pressing Check the EXIT/OK.
Performance Check Trigger Indicators vs. Trigger Levels Trigger Level Trigger Indicator Pass (manually set) Input A Input B +1 V 0.0 V 0.5 V blinking Table 7-4 Trigger indicator check. NOTE: This test must be performed in the verify by pressing Check the EXIT/OK.
Performance Check Trigger Indicators vs. Trigger Levels Trigger Level Trigger Indicator Pass (manually set) Input A Input B +1 V 0.0 V 0.5 V blinking Table 7-4 Trigger indicator check. NOTE: This test must be performed in the verify by pressing Check the EXIT/OK.
Performance Check Input Controls X-tal oscillators are affected by a number of external conditions like ambient temperature — Recall the DEFAULT settings. and supply voltage. Aging is also an important factor. Therefore it is hard to give — Connect the LF synthesizer to Input A. limits for the allowed frequency deviation.
Performance Check Input Controls X-tal oscillators are affected by a number of external conditions like ambient temperature — Recall the DEFAULT settings. and supply voltage. Aging is also an important factor. Therefore it is hard to give — Connect the LF synthesizer to Input A. limits for the allowed frequency deviation.
Performance Check Input Controls X-tal oscillators are affected by a number of external conditions like ambient temperature — Recall the DEFAULT settings. and supply voltage. Aging is also an important factor. Therefore it is hard to give — Connect the LF synthesizer to Input A. limits for the allowed frequency deviation.
Performance Check Resolution Test Rear Inputs/Outputs — Connect the pulse generator to a power splitter. 10 MHz OUT — Connect one side of the power splitter to — Connect an oscilloscope to the 10 MHz Input A on the counter using a coaxial ca- output on the rear of the counter.
Performance Check Resolution Test Rear Inputs/Outputs — Connect the pulse generator to a power splitter. 10 MHz OUT — Connect one side of the power splitter to — Connect an oscilloscope to the 10 MHz Input A on the counter using a coaxial ca- output on the rear of the counter.
Performance Check Resolution Test Rear Inputs/Outputs — Connect the pulse generator to a power splitter. 10 MHz OUT — Connect one side of the power splitter to — Connect an oscilloscope to the 10 MHz Input A on the counter using a coaxial ca- output on the rear of the counter.
Performance Check EXT ARM IN Selected — Proceed from the test above. Action Display Function — Select ual trigger. RECALL DEFAULT FREQ A 10 MHz (10 dec.) — Settings for the pulse generator: FREQ B 10 MHz (10 dec.) single shot pulse, manual trigger, FREQ RATIO 1 (4 dec.) amplitude TTL = 0 - 2 V...
Performance Check EXT ARM IN Selected — Proceed from the test above. Action Display Function — Select ual trigger. RECALL DEFAULT FREQ A 10 MHz (10 dec.) — Settings for the pulse generator: FREQ B 10 MHz (10 dec.) single shot pulse, manual trigger, FREQ RATIO 1 (4 dec.) amplitude TTL = 0 - 2 V...
Performance Check EXT ARM IN Selected — Proceed from the test above. Action Display Function — Select ual trigger. RECALL DEFAULT FREQ A 10 MHz (10 dec.) — Settings for the pulse generator: FREQ B 10 MHz (10 dec.) single shot pulse, manual trigger, FREQ RATIO 1 (4 dec.) amplitude TTL = 0 - 2 V...
If Trigger Hold Off time >100 ns the result is given for this test. about 100 ns + Trig Hold Off time. – The CNT-90 and the CNT-91 with – Connect the signal to Input B, select optional RF inputs as well as the...
If Trigger Hold Off time >100 ns the result is given for this test. about 100 ns + Trig Hold Off time. – The CNT-90 and the CNT-91 with – Connect the signal to Input B, select optional RF inputs as well as the...
If Trigger Hold Off time >100 ns the result is given for this test. about 100 ns + Trig Hold Off time. – The CNT-90 and the CNT-91 with – Connect the signal to Input B, select optional RF inputs as well as the...
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User’s Manual. 2500-2700 2700-3000 Sensitivity Table 7-8 RF input sensitivity, 3 GHz Option. To verify the specifications of the different Frequency Amplitude RF prescalers (CNT-90 & CNT-91) or Microwave Converters (CNT-90XL-xxG) 300-500 use the following basic test setup: 500-3000 –...
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User’s Manual. 2500-2700 2700-3000 Sensitivity Table 7-8 RF input sensitivity, 3 GHz Option. To verify the specifications of the different Frequency Amplitude RF prescalers (CNT-90 & CNT-91) or Microwave Converters (CNT-90XL-xxG) 300-500 use the following basic test setup: 500-3000 –...
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User’s Manual. 2500-2700 2700-3000 Sensitivity Table 7-8 RF input sensitivity, 3 GHz Option. To verify the specifications of the different Frequency Amplitude RF prescalers (CNT-90 & CNT-91) or Microwave Converters (CNT-90XL-xxG) 300-500 use the following basic test setup: 500-3000 –...
Performance Check Frequency Amplitude Power (CNT-90XL only) 0.3 to 18 18 to 20 Use the same test setup as in the section 20 to 27 Sensitivity above. Make sure the generator is well calibrated, and connect it to the DUT 27 to 40 with as short a cable as possible to avoid 40 to 46²...
Performance Check Frequency Amplitude Power (CNT-90XL only) 0.3 to 18 18 to 20 Use the same test setup as in the section 20 to 27 Sensitivity above. Make sure the generator is well calibrated, and connect it to the DUT 27 to 40 with as short a cable as possible to avoid 40 to 46²...
Performance Check Frequency Amplitude Power (CNT-90XL only) 0.3 to 18 18 to 20 Use the same test setup as in the section 20 to 27 Sensitivity above. Make sure the generator is well calibrated, and connect it to the DUT 27 to 40 with as short a cable as possible to avoid 40 to 46²...
Performance Check Battery Supply — Recall the default settings by pressing USER OPT Save/Recall Recall Setup Default. Option 23/90 for CNT-90 & — Connect on the rear panel to 10 MHz OUT CNT-90XL only and select Input A, Freq A.
Performance Check Setup the pulse generator to generate a pulse signal with Pulse repetition interval of 1ms, Pulse width = 100µs and signal level from 0 to 1 Volt Set HF generator signal to 1 GHz, - 10dBm 3. Connect a 50 ohm power splitter to the RF generator output. Connect one output of the splitter with a short (low loss) cable to the CNT-90XL.
Performance Check Setup the pulse generator to generate a pulse signal with Pulse repetition interval of 1ms, Pulse width = 100µs and signal level from 0 to 1 Volt Set HF generator signal to 1 GHz, - 10dBm 3. Connect a 50 ohm power splitter to the RF generator output. Connect one output of the splitter with a short (low loss) cable to the CNT-90XL.
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Performance Check Frequency in Pulse: Accuracy without short-pulse compensation Change RF generator output level to -10 dBm The following measurements should be made, by changing the required parameters. RF generator Pulse generator Counter Frequency Tolerance Pulse Measu- Manual measured Pulse Start Sensi- Frequency...
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Performance Check Frequency in Pulse: Accuracy without short-pulse compensation Change RF generator output level to -10 dBm The following measurements should be made, by changing the required parameters. RF generator Pulse generator Counter Frequency Tolerance Pulse Measu- Manual measured Pulse Start Sensi- Frequency...
Performance Check 1. Set up the RF generator to 1 GHz and -10 dB 2. Set up the CNT-90XL counter for Freq CW measurements: “Meas Func => Frequency => Freq => C” still using manual acquisition. 3. Measure the CW mean frequency at 200 msec measuring time with N=10 samples. Note the value as the reference value F1 in table 3 below 4.
Specifications Introduction Frequency Burst A, B, C Frequency and PRF of repetitive burst signals Only values with tolerances or limits are guar- can be measured without external control sig- anteed data. Values without tolerances are in- nal and with selectable start arming delay. formative data, without guarantee.
Performance Check 1. Set up the RF generator to 1 GHz and -10 dB 2. Set up the CNT-90XL counter for Freq CW measurements: “Meas Func => Frequency => Freq => C” still using manual acquisition. 3. Measure the CW mean frequency at 200 msec measuring time with N=10 samples. Note the value as the reference value F1 in table 3 below 4.
Specifications Period A, B Single ■ Display: Range A, B: Main Parameter: Time interval 3.3 ns - 1000 s Resolution: Aux. Parameters: 100 ps None Pulse Width A, B ■ Display: Range: 2.5 ns - 10 Main Parameter: Period Input Frequency: Lp to 200 MHz Aux.
Performance Check PRI measurements Set up Pulsed RF PRI measurement on the CNT-90XL “Meas Func=> Pulsed RF=> Repetition=> PRI =>C” The following measurements should be made, by changing the required parameters. RF generator Pulse generator Counter Pulse width Tolerance Pulse Manual measured Pulse...
Specifications Phase A Rel. B, B Rel. A Vmax, Vmin, Vp-p A, B Alternative data within parentheses refer to Range: -180° to +360° input attenuator setting x10. Resolution: 0.001° to 10 kHz 0.01° to 1 MHz 0.1° to 10 MHz 1° Range: -5 V to +5 V (-50 V to +50 V) >10 MHz Resolution can...
Performance Check PRI measurements Set up Pulsed RF PRI measurement on the CNT-90XL “Meas Func=> Pulsed RF=> Repetition=> PRI =>C” The following measurements should be made, by changing the required parameters. RF generator Pulse generator Counter Pulse width Tolerance Pulse Manual measured Pulse...
Specifications Input and Output Timestamping A, B, C This function is only accessible via GPIB or Specifications USB. No absolute time exists, timestamp values Inputs A and B only used relative time Alternative data within parentheses refer to measurements. input attenuator setting x10. Timestamps are taken of two consecutive positive edges and two consecutive Frequency Range...
Performance Check Battery Supply — Recall the default settings by pressing USER OPT Save/Recall Recall Setup Default. Option 23/90 for CNT-90 & — Connect on the rear panel to 10 MHz OUT CNT-90XL only and select Input A, Freq A.
Specifications Connector: Type N female Time Meas. : (+compensation) Freq. Meas. & 70 % and 30 % of input Input C (Option 13) Per. Avg.: signal. Minimum hysteresis window if arming on A or B is Freq. Range: 300 MHz - 8 GHz activated.
Performance Check Battery Supply — Recall the default settings by pressing USER OPT Save/Recall Recall Setup Default. Option 23/90 for CNT-90 & — Connect on the rear panel to 10 MHz OUT CNT-90XL only and select Input A, Freq A.
Specifications Upper limit (limit 2) limit 1 Settings: Capture & store values inside Alarm if value > limit 2 limits 1 and 2 Alarm if value < limit 1 Alarm if Capture & store values outside limit 1 < value < limit 2 limits 1 and 2 Alarm if value >...
Specifications Introduction Frequency Burst A, B, C Frequency and PRF of repetitive burst signals Only values with tolerances or limits are guar- can be measured without external control sig- anteed data. Values without tolerances are in- nal and with selectable start arming delay. formative data, without guarantee.
Specifications Agilent Continuous HP 53131/132/181 com- Yes, from LF to 250 kHz Single Period: Compatibility: mands are emulated. Code repetition rate and response format is compatible. No timing Waveform compatibility. No resolution Capture: compatibility Data Analysis Measurement data vs time Interface Func- SH1, AH1, T6, L4, SR1, Features:...
Specifications Introduction Frequency Burst A, B, C Frequency and PRF of repetitive burst signals Only values with tolerances or limits are guar- can be measured without external control sig- anteed data. Values without tolerances are in- nal and with selectable start arming delay. formative data, without guarantee.
Specifications Period A, B Single ■ Display: Range A, B: Main Parameter: Time interval 3.3 ns - 1000 s Resolution: Aux. Parameters: 100 ps None Pulse Width A, B ■ Display: Range: 2.5 ns - 10 Main Parameter: Period Input Frequency: Lp to 200 MHz Aux.
Specifications Measurement Timebase Error (TBE) ■ TBE is the relative error of the timebase oscil- Uncertainties lator (dimensionless) and depends on the actual oscillator used. See Timebase Options on page 8-15. Random Uncertainties (1) Total Uncertainty (2) Quantization Error (E ■...
Specifications Period A, B Single ■ Display: Range A, B: Main Parameter: Time interval 3.3 ns - 1000 s Resolution: Aux. Parameters: 100 ps None Pulse Width A, B ■ Display: Range: 2.5 ns - 10 Main Parameter: Period Input Frequency: Lp to 200 MHz Aux.
Specifications Phase A Rel. B, B Rel. A Vmax, Vmin, Vp-p A, B Alternative data within parentheses refer to Range: -180° to +360° input attenuator setting x10. Resolution: 0.001° to 10 kHz 0.01° to 1 MHz 0.1° to 10 MHz 1° Range: -5 V to +5 V (-50 V to +50 V) >10 MHz Resolution can...
Specifications Systematic Uncertainty ■ For measuring times >=200 ms and if Smart Freq = AUTO or ON: Duty Factor ■ Random Uncertainty (rms) [Hz or s] x Measurement Result or minimum: 1 ppm N = 800 /Measuring Time, however, 6 < N < ■...
Specifications Phase A Rel. B, B Rel. A Vmax, Vmin, Vp-p A, B Alternative data within parentheses refer to Range: -180° to +360° input attenuator setting x10. Resolution: 0.001° to 10 kHz 0.01° to 1 MHz 0.1° to 10 MHz 1° Range: -5 V to +5 V (-50 V to +50 V) >10 MHz Resolution can...
Specifications Input and Output Timestamping A, B, C This function is only accessible via GPIB or Specifications USB. No absolute time exists, timestamp values Inputs A and B only used relative time Alternative data within parentheses refer to measurements. input attenuator setting x10. Timestamps are taken of two consecutive positive edges and two consecutive Frequency Range...
Specifications Calibration General Specifications Mode: Closed case, menu-con- trolled. Environmental Data Calibration Input: Password Protection: ON or OFF Class: MIL-PRF-28800F, Class 3 Input Frequen- Operat. Temp: 0 °C to +50 °C cies used for TB Storage Temp: -40 °C to +71 °C 1.0, 1.544, 2.048, 5.0 or Calibration: Humidity:...
Specifications Input and Output Timestamping A, B, C This function is only accessible via GPIB or Specifications USB. No absolute time exists, timestamp values Inputs A and B only used relative time Alternative data within parentheses refer to measurements. input attenuator setting x10. Timestamps are taken of two consecutive positive edges and two consecutive Frequency Range...
Specifications Connector: Type N female Time Meas. : (+compensation) Freq. Meas. & 70 % and 30 % of input Input C (Option 13) Per. Avg.: signal. Minimum hysteresis window if arming on A or B is Freq. Range: 300 MHz - 8 GHz activated.
Option 27H: Heavy-duty hard transport Weight: Net 2.7 kg (5.8 lb) case Shipping 3.5 kg (7.5 lb) Option 29/90: TimeView for CNT-90, modulation domain analysis Option 90/01: Cal. certificate w. protocol; Ordering standard oscillator Option 90/06: Cal. certificate w. protocol;...
Specifications Connector: Type N female Time Meas. : (+compensation) Freq. Meas. & 70 % and 30 % of input Input C (Option 13) Per. Avg.: signal. Minimum hysteresis window if arming on A or B is Freq. Range: 300 MHz - 8 GHz activated.
Specifications Timebase Options Product Family '9X' Option Standard Option 19/90 Option 30/90 Option 40/90 Timebase Type UCXO OCXO OCXO OCXO Uncertainty due to: -Calibration adjustment tolerance @ +23 °C ± 3°C <1x10 <5x10 <1x10 <3x10 -Aging per 24 h <5x10 <5x10 <3x10 per month...
Specifications Upper limit (limit 2) limit 1 Settings: Capture & store values inside Alarm if value > limit 2 limits 1 and 2 Alarm if value < limit 1 Alarm if Capture & store values outside limit 1 < value < limit 2 limits 1 and 2 Alarm if value >...
Specifications Upper limit (limit 2) limit 1 Settings: Capture & store values inside Alarm if value > limit 2 limits 1 and 2 Alarm if value < limit 1 Alarm if Capture & store values outside limit 1 < value < limit 2 limits 1 and 2 Alarm if value >...
Specifications Agilent Continuous HP 53131/132/181 com- Yes, from LF to 250 kHz Single Period: Compatibility: mands are emulated. Code repetition rate and response format is compatible. No timing Waveform compatibility. No resolution Capture: compatibility Data Analysis Measurement data vs time Interface Func- SH1, AH1, T6, L4, SR1, Features:...
Specifications Introduction ■ Display: Only values with tolerances or limits are Main Parameter: Frequency in burst guaranteed data. Values without tolerances are Aux. Parameters: PRF & number of cycles in informative data, without guarantee. burst (Ch A or Ch B only) Period A, B, C Average Measurement ■...
Specifications Agilent Continuous HP 53131/132/181 com- Yes, from LF to 250 kHz Single Period: Compatibility: mands are emulated. Code repetition rate and response format is compatible. No timing Waveform compatibility. No resolution Capture: compatibility Data Analysis Measurement data vs time Interface Func- SH1, AH1, T6, L4, SR1, Features:...
Specifications Measurement Timebase Error (TBE) ■ TBE is the relative error of the timebase oscil- Uncertainties lator (dimensionless) and depends on the actual oscillator used. See Timebase Options on page 8-15. Random Uncertainties (1) Total Uncertainty (2) Quantization Error (E ■...
Specifications Vmax, Vmin, Vp-p A, B ■ Display: Alternative data within parentheses refer to Main Parameter: Time interval input attenuator setting x10. Aux. Parameters: None Range: -5 V to +5 V Pulse Width A, B (-50 V to +50 V) 2.5 ns - 10 Range: DC, 1Hz - 300 MHz,...
Specifications Measurement Timebase Error (TBE) ■ TBE is the relative error of the timebase oscil- Uncertainties lator (dimensionless) and depends on the actual oscillator used. See Timebase Options on page 8-15. Random Uncertainties (1) Total Uncertainty (2) Quantization Error (E ■...
Specifications Systematic Uncertainty ■ For measuring times >=200 ms and if Smart Freq = AUTO or ON: Duty Factor ■ Random Uncertainty (rms) [Hz or s] x Measurement Result or minimum: 1 ppm N = 800 /Measuring Time, however, 6 < N < ■...
Specifications Pulsed RF parameters input C in frequency measurements, an auto trigger at 50 % of Vp p with minimum hysteresis incl. hysteresis (Option 28 only) compensation in time measurements, an auto find of burst length and auto sync for frequency burst measurements, etc. Frequency range: 0.3 to 27/40/46/60 GHz NOTE: The frequency range for inputs A &...
Specifications Systematic Uncertainty ■ For measuring times >=200 ms and if Smart Freq = AUTO or ON: Duty Factor ■ Random Uncertainty (rms) [Hz or s] x Measurement Result or minimum: 1 ppm N = 800 /Measuring Time, however, 6 < N < ■...
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Specifications Calibration General Specifications Mode: Closed case, menu-con- trolled. Environmental Data Calibration Input: Password Protection: ON or OFF Class: MIL-PRF-28800F, Class 3 Input Frequen- Operat. Temp: 0 °C to +50 °C cies used for TB Storage Temp: -40 °C to +71 °C 1.0, 1.544, 2.048, 5.0 or Calibration: Humidity:...
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Specifications Calibration General Specifications Mode: Closed case, menu-con- trolled. Environmental Data Calibration Input: Password Protection: ON or OFF Class: MIL-PRF-28800F, Class 3 Input Frequen- Operat. Temp: 0 °C to +50 °C cies used for TB Storage Temp: -40 °C to +71 °C 1.0, 1.544, 2.048, 5.0 or Calibration: Humidity:...
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Option 27H: Heavy-duty hard transport Weight: Net 2.7 kg (5.8 lb) case Shipping 3.5 kg (7.5 lb) Option 29/90: TimeView for CNT-90, modulation domain analysis Option 90/01: Cal. certificate w. protocol; Ordering standard oscillator Option 90/06: Cal. certificate w. protocol;...
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Specifications USB Interface Timebase Reference: Internal, external or automatic Version: 2.0, 12 Mb/s Protocol: USBTMC-USB488 Display Hold: Freezes meas. result until a new measurement is initiated TimeView™ via Restart. Digit Blanking: Removes (blanks) 1 to 13 This software package is intended for advanced digits from the calculated result Modulation Domain analysis and runs on any before displaying it.
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Option 27H: Heavy-duty hard transport Weight: Net 2.7 kg (5.8 lb) case Shipping 3.5 kg (7.5 lb) Option 29/90: TimeView for CNT-90, modulation domain analysis Option 90/01: Cal. certificate w. protocol; Ordering standard oscillator Option 90/06: Cal. certificate w. protocol;...
Specifications Timebase Options Product Family '9X' Option Standard Option 19/90 Option 30/90 Option 40/90 Timebase Type UCXO OCXO OCXO OCXO Uncertainty due to: -Calibration adjustment tolerance @ +23 °C ± 3°C <1x10 <5x10 <1x10 <3x10 -Aging per 24 h <5x10 <5x10 <3x10 per month...
Specifications Measurement Uncertainties where: = trigger level timing error 500 ps = maximum channel difference Random Uncertainties (1) TBE = timebase error TIME = measurement result ■ Quantization Error (E Frequency & Period A, B = 100 ps rms ■ Random Uncertainty (rms) ■...
Specifications Timebase Options Product Family '9X' Option Standard Option 19/90 Option 30/90 Option 40/90 Timebase Type UCXO OCXO OCXO OCXO Uncertainty due to: -Calibration adjustment tolerance @ +23 °C ± 3°C <1x10 <5x10 <1x10 <3x10 -Aging per 24 h <5x10 <5x10 <3x10 per month...
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Specifications CNT-90XL 8-16 USER MANUAL ● CNT 9x Series ● Rev.22 February 2020...
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Specifications Duty Factor Frequency Ratio f or f ■ Typical Random Uncertainty Random Uncertainty (rms) ■ (rms) NOTE: Frequency Ratio is an auxiliary measurement function, intended to give an or minimum: 1 ppm indication, with guaranteed specification. ■ Systematic Uncertainty [dimensionless, e.g.
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Specifications CNT-90XL 8-16 USER MANUAL ● CNT 9x Series ● Rev.22 February 2020...
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Specifications Introduction ■ Display: Only values with tolerances or limits are Main Parameter: Frequency in burst guaranteed data. Values without tolerances are Aux. Parameters: PRF & number of cycles in informative data, without guarantee. burst (Ch A or Ch B only) Period A, B, C Average Measurement ■...
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Specifications General Ordering Specifications Information Basic Model Environmental Data CNT-90XL-27G\ \40G\46G\60G: 27 /40 /46 /60 GHz MIL-PRF-28800F, Class 3 Class: Microwave Frequency 0 °C to +50 °C Operat. Temp: Counter/Analyzer including -40 °C to +71 °C Storage Temp: medium stability OCXO 5-95 % @ 10-30 °C Humidity: timebase...
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Specifications Introduction ■ Display: Only values with tolerances or limits are Main Parameter: Frequency in burst guaranteed data. Values without tolerances are Aux. Parameters: PRF & number of cycles in informative data, without guarantee. burst (Ch A or Ch B only) Period A, B, C Average Measurement ■...
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Specifications Vmax, Vmin, Vp-p A, B ■ Display: Alternative data within parentheses refer to Main Parameter: Time interval input attenuator setting x10. Aux. Parameters: None Range: -5 V to +5 V Pulse Width A, B (-50 V to +50 V) 2.5 ns - 10 Range: DC, 1Hz - 300 MHz,...
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Specifications Timebase Options Product Family Option Option 19/90 Option 30/90 Option 40/90 Timebase Type OCXO OCXO OCXO Uncertainty due to: -Calibration adjustment tolerance <5x10 <1x10 <3x10 @ +23 °C ± 3 ° C -Aging per 24 h <5x10 <3x10 <5x10 per month <1x10 <3x10...
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Specifications Vmax, Vmin, Vp-p A, B ■ Display: Alternative data within parentheses refer to Main Parameter: Time interval input attenuator setting x10. Aux. Parameters: None Range: -5 V to +5 V Pulse Width A, B (-50 V to +50 V) 2.5 ns - 10 Range: DC, 1Hz - 300 MHz,...
Specifications Pulsed RF parameters input C in frequency measurements, an auto trigger at 50 % of Vp p with minimum hysteresis incl. hysteresis (Option 28 only) compensation in time measurements, an auto find of burst length and auto sync for frequency burst measurements, etc. Frequency range: 0.3 to 27/40/46/60 GHz NOTE: The frequency range for inputs A &...
Specifications Pulsed RF parameters input C in frequency measurements, an auto trigger at 50 % of Vp p with minimum hysteresis incl. hysteresis (Option 28 only) compensation in time measurements, an auto find of burst length and auto sync for frequency burst measurements, etc. Frequency range: 0.3 to 27/40/46/60 GHz NOTE: The frequency range for inputs A &...
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Specifications Introduction Frequency Burst A, B, C Frequency and PRF of repetitive burst Only values with tolerances or limits are signals can be measured without external guaranteed data. Values without tolerances control signal and with selectable start are informative data, without guarantee. arming delay.
Specifications USB Interface Timebase Reference: Internal, external or automatic Version: 2.0, 12 Mb/s Protocol: USBTMC-USB488 Display Hold: Freezes meas. result until a new measurement is initiated TimeView™ via Restart. Digit Blanking: Removes (blanks) 1 to 13 This software package is intended for advanced digits from the calculated result Modulation Domain analysis and runs on any before displaying it.
Specifications stamps (2 consecutive Trig A Period A, B Single plus 2 consecutive Trig B) to determine sign (A before B or A Range A, B: 3.3 ns - 1000 s after B) Resolution: 50 ps rms typical ■ Display: ■...
Specifications USB Interface Timebase Reference: Internal, external or automatic Version: 2.0, 12 Mb/s Protocol: USBTMC-USB488 Display Hold: Freezes meas. result until a new measurement is initiated TimeView™ via Restart. Digit Blanking: Removes (blanks) 1 to 13 This software package is intended for advanced digits from the calculated result Modulation Domain analysis and runs on any before displaying it.
Specifications Measurement Uncertainties where: = trigger level timing error 500 ps = maximum channel difference Random Uncertainties (1) TBE = timebase error TIME = measurement result ■ Quantization Error (E Frequency & Period A, B = 100 ps rms ■ Random Uncertainty (rms) ■...
Specifications Time Interval Error (TIE) A, B ■ Display: Normalized Period Back-to-Back measurements, Main Parameter: Phase calculated as: Aux. Parameters: Freq (prim. channel), V (in dB), based on peak-to-peak meas. Ti = individual period back-to-back and TREF = reference period value. Duty Factor A, B Range: ±1x10...
Specifications Measurement Uncertainties where: = trigger level timing error 500 ps = maximum channel difference Random Uncertainties (1) TBE = timebase error TIME = measurement result ■ Quantization Error (E Frequency & Period A, B = 100 ps rms ■ Random Uncertainty (rms) ■...
Specifications Duty Factor Frequency Ratio f or f ■ Typical Random Uncertainty Random Uncertainty (rms) ■ (rms) NOTE: Frequency Ratio is an auxiliary measurement function, intended to give an or minimum: 1 ppm indication, with guaranteed specification. ■ Systematic Uncertainty [dimensionless, e.g.
Specifications NOTE: MANUAL controlled by front panel push Input Frequency: DC, 1 H z - 300 MHz, button HOLD/RUN. Statistics and pac- 100 Hz - 300 MHz default ing inhibited. (higher LF limit means higher GATED, START/STOP and TIMED meas. speed) controlled by setting arming conditions on the free input channels.
Specifications Duty Factor Frequency Ratio f or f ■ Typical Random Uncertainty Random Uncertainty (rms) ■ (rms) NOTE: Frequency Ratio is an auxiliary measurement function, intended to give an or minimum: 1 ppm indication, with guaranteed specification. ■ Systematic Uncertainty [dimensionless, e.g.
Specifications General Ordering Specifications Information Basic Model Environmental Data CNT-90XL-27G\ \40G\46G\60G: 27 /40 /46 /60 GHz MIL-PRF-28800F, Class 3 Class: Microwave Frequency 0 °C to +50 °C Operat. Temp: Counter/Analyzer including -40 °C to +71 °C Storage Temp: medium stability OCXO 5-95 % @ 10-30 °C Humidity: timebase...
Specifications Input and Output Relative level (in %) manually adjustable when necessary. Specifications Auto Hysteresis Time Meas. : Minimum hysteresis window Inputs A and B (+compensation) Alternative data within parentheses refer to Freq. Meas. & Per. Avg.: input attenuator setting x10. 70 % and 30 % of input signal.
Specifications General Ordering Specifications Information Basic Model Environmental Data CNT-90XL-27G\ \40G\46G\60G: 27 /40 /46 /60 GHz MIL-PRF-28800F, Class 3 Class: Microwave Frequency 0 °C to +50 °C Operat. Temp: Counter/Analyzer including -40 °C to +71 °C Storage Temp: medium stability OCXO 5-95 % @ 10-30 °C Humidity: timebase...
Specifications Timebase Options Product Family Option Option 19/90 Option 30/90 Option 40/90 Timebase Type OCXO OCXO OCXO Uncertainty due to: -Calibration adjustment tolerance <5x10 <1x10 <3x10 @ +23 °C ± 3 ° C -Aging per 24 h <5x10 <3x10 <5x10 per month <1x10 <3x10...
Specifications Timebase Options Product Family Option Option 19/90 Option 30/90 Option 40/90 Timebase Type OCXO OCXO OCXO Uncertainty due to: -Calibration adjustment tolerance <5x10 <1x10 <3x10 @ +23 °C ± 3 ° C -Aging per 24 h <5x10 <3x10 <5x10 per month <1x10 <3x10...
Specifications Introduction Frequency Burst A, B, C Frequency and PRF of repetitive burst Only values with tolerances or limits are signals can be measured without external guaranteed data. Values without tolerances control signal and with selectable start are informative data, without guarantee. arming delay.
Specifications Limit Qualifier: Alarm if value < limit 1 Capture & store values Alarm if above limit 2 limit 1 < value < limit 2 Capture & store values Alarm if value > limit 2 or value below limit 1 <...
Specifications Introduction Frequency Burst A, B, C Frequency and PRF of repetitive burst Only values with tolerances or limits are signals can be measured without external guaranteed data. Values without tolerances control signal and with selectable start are informative data, without guarantee. arming delay.
Specifications stamps (2 consecutive Trig A Period A, B Single plus 2 consecutive Trig B) to determine sign (A before B or A Range A, B: 3.3 ns - 1000 s after B) Resolution: 50 ps rms typical ■ Display: ■...
Specifications 4 k readings/s (talk only) TimeView™ To Internal 250 k readings/s, 100 k This software package is intended for ad- Memory: readings/s w. calibr. on vanced Modulation Domain analysis and runs >3.9 M readings w. calibr. Internal Memory on any 32-bit Windows® system. Size: Data Output: ASCII, IEEE double precision...
Specifications stamps (2 consecutive Trig A Period A, B Single plus 2 consecutive Trig B) to determine sign (A before B or A Range A, B: 3.3 ns - 1000 s after B) Resolution: 50 ps rms typical ■ Display: ■...
Specifications Time Interval Error (TIE) A, B ■ Display: Normalized Period Back-to-Back measurements, Main Parameter: Phase calculated as: Aux. Parameters: Freq (prim. channel), V (in dB), based on peak-to-peak meas. Ti = individual period back-to-back and TREF = reference period value. Duty Factor A, B Range: ±1x10...
Specifications Measurement Hyst = 6 mV ± 1 % of trig lvl (DC tol kHz) for other measurement functions. Uncertainties Example for phase with sinewave signals and 0 V trigger levels (attenuator setting xl): Random Uncertainties (1) , where = Inp A peak voltage in V, and Quantization Error (E ■...
Specifications Time Interval Error (TIE) A, B ■ Display: Normalized Period Back-to-Back measurements, Main Parameter: Phase calculated as: Aux. Parameters: Freq (prim. channel), V (in dB), based on peak-to-peak meas. Ti = individual period back-to-back and TREF = reference period value. Duty Factor A, B Range: ±1x10...
Specifications NOTE: MANUAL controlled by front panel push Input Frequency: DC, 1 H z - 300 MHz, button HOLD/RUN. Statistics and pac- 100 Hz - 300 MHz default ing inhibited. (higher LF limit means higher GATED, START/STOP and TIMED meas. speed) controlled by setting arming conditions on the free input channels.
Specifications Frequency & Period Frequency Ratio f Random Uncertainty (rms) ■ ■ Typical Random Uncertainty (rms) NOTE. Frequency Ratio is an auxiliary mea- Smart Mode surementfunction, intended to give an indica- For measuring times <200 ms and if Smart tion, with no guaranteed specification. Freq = AUTO or OFF: [dimensionless, e.g.
Specifications NOTE: MANUAL controlled by front panel push Input Frequency: DC, 1 H z - 300 MHz, button HOLD/RUN. Statistics and pac- 100 Hz - 300 MHz default ing inhibited. (higher LF limit means higher GATED, START/STOP and TIMED meas. speed) controlled by setting arming conditions on the free input channels.
Specifications Input and Output Relative level (in %) manually adjustable when necessary. Specifications Auto Hysteresis Time Meas. : Minimum hysteresis window Inputs A and B (+compensation) Alternative data within parentheses refer to Freq. Meas. & Per. Avg.: input attenuator setting x10. 70 % and 30 % of input signal.
Specifications Calibration General Specifications Mode: Closed case, menu-con- trolled. Calibration Input: Environmental Data Password Protection: ON or OFF Class: MIL-PRF-28800F, Class 3 Input Frequen- 1.0, 1.544, 2.048, 5.0 or 10.0 Operat. Temp: 0 °C to +50 (+45)* °C cies used for TB Storage Temp: -40 °C to +71 °C, non-condensing, Calibration:...
Specifications Input and Output Relative level (in %) manually adjustable when necessary. Specifications Auto Hysteresis Time Meas. : Minimum hysteresis window Inputs A and B (+compensation) Alternative data within parentheses refer to Freq. Meas. & Per. Avg.: input attenuator setting x10. 70 % and 30 % of input signal.
2U (90 mm) Heavy-duty hard transport Height: 395 mm Depth: case Weight: Option 29/90: TimeView for CNT-90/91, Net 2.7 kg (5.8 lb) CNT-91: modulation domain analysis Shipping 3.5 kg (7.5 lb) CNT-91R: Option 90/01: Cal. certificate w. protocol; standard oscillator Option 90/06: Cal.
Specifications Timebase Options CNT-91 Product Family '9X' Standard Option 19/90 Option 30/90 Option 40/90 Option UCXO OCXO OCXO OCXO Timebase Type Uncertainty due to: -Calibration adjustment tolerance @ +23 °C ± 3 ° C <1x10 <5x10 <1x10 <3x10 -Aging per 24 h <5x10 <5x10 <3x10...
Specifications Limit Qualifier: Alarm if value < limit 1 Capture & store values Alarm if above limit 2 limit 1 < value < limit 2 Capture & store values Alarm if value > limit 2 or value below limit 1 <...
Specifications Timebase Explanations After 3 months of continuous operation. Specifications After 1 year, aging during 1 year: CNT-91R <5x10 ; long-term < 2 x 10 / 10 years. 3)After 1 year of operation. Uncertainty Product Family '9X' Rubidium <6x10 the first year of operation. Timebase Type Uncertainty due to: Calibration Adjustment Tolerance is the...
Specifications Limit Qualifier: Alarm if value < limit 1 Capture & store values Alarm if above limit 2 limit 1 < value < limit 2 Capture & store values Alarm if value > limit 2 or value below limit 1 <...
Specifications 4 k readings/s (talk only) TimeView™ To Internal 250 k readings/s, 100 k This software package is intended for ad- Memory: readings/s w. calibr. on vanced Modulation Domain analysis and runs >3.9 M readings w. calibr. Internal Memory on any 32-bit Windows® system. Size: Data Output: ASCII, IEEE double precision...
Specifications 4 k readings/s (talk only) TimeView™ To Internal 250 k readings/s, 100 k This software package is intended for ad- Memory: readings/s w. calibr. on vanced Modulation Domain analysis and runs >3.9 M readings w. calibr. Internal Memory on any 32-bit Windows® system. Size: Data Output: ASCII, IEEE double precision...
Specifications Measurement Hyst = 6 mV ± 1 % of trig lvl (DC tol kHz) for other measurement functions. Uncertainties Example for phase with sinewave signals and 0 V trigger levels (attenuator setting xl): Random Uncertainties (1) , where = Inp A peak voltage in V, and Quantization Error (E ■...
Specifications Introduction Frequency Burst A, B, C Frequency and PRF of repetitive burst signals Only values with tolerances or limits are can be measured without external control guaranteed data. Values without tolerances sig-nal and with selectable start arming delay. are informative data, without guarantee. Functions: Frequency in burst (Hz) PRF (Hz)
Specifications Measurement Hyst = 6 mV ± 1 % of trig lvl (DC tol kHz) for other measurement functions. Uncertainties Example for phase with sinewave signals and 0 V trigger levels (attenuator setting xl): Random Uncertainties (1) , where = Inp A peak voltage in V, and Quantization Error (E ■...
Specifications Frequency & Period Frequency Ratio f Random Uncertainty (rms) ■ ■ Typical Random Uncertainty (rms) NOTE. Frequency Ratio is an auxiliary mea- Smart Mode surementfunction, intended to give an indica- For measuring times <200 ms and if Smart tion, with no guaranteed specification. Freq = AUTO or OFF: [dimensionless, e.g.
Specifications Period A, B Single to determine sign (A before B or A after B) Range A, B: 3.3 ns - 1000 s ■ Display: Resolution: 50 ps rms typical ■ Display: Main Parameter: Time interval Aux. Parameters: None Main Parameter: Period Aux.
Specifications Frequency & Period Frequency Ratio f Random Uncertainty (rms) ■ ■ Typical Random Uncertainty (rms) NOTE. Frequency Ratio is an auxiliary mea- Smart Mode surementfunction, intended to give an indica- For measuring times <200 ms and if Smart tion, with no guaranteed specification. Freq = AUTO or OFF: [dimensionless, e.g.
Specifications Calibration General Specifications Mode: Closed case, menu-con- trolled. Calibration Input: Environmental Data Password Protection: ON or OFF Class: MIL-PRF-28800F, Class 3 Input Frequen- 1.0, 1.544, 2.048, 5.0 or 10.0 Operat. Temp: 0 °C to +50 (+45)* °C cies used for TB Storage Temp: -40 °C to +71 °C, non-condensing, Calibration:...
Specifications Time Interval Error (TIE) A, B with 4 time stamps, 2 consecutive trig. A + two Normalized Period Back-to-Back measurements, consecutive trig. B to calculated as: determine sign of phase. ■ Display: Ti = individual period back-to-back and T Main Parameter: Phase reference period value.
Specifications Calibration General Specifications Mode: Closed case, menu-con- trolled. Calibration Input: Environmental Data Password Protection: ON or OFF Class: MIL-PRF-28800F, Class 3 Input Frequen- 1.0, 1.544, 2.048, 5.0 or 10.0 Operat. Temp: 0 °C to +50 (+45)* °C cies used for TB Storage Temp: -40 °C to +71 °C, non-condensing, Calibration:...
2U (90 mm) Heavy-duty hard transport Height: 395 mm Depth: case Weight: Option 29/90: TimeView for CNT-90/91, Net 2.7 kg (5.8 lb) CNT-91: modulation domain analysis Shipping 3.5 kg (7.5 lb) CNT-91R: Option 90/01: Cal. certificate w. protocol; standard oscillator Option 90/06: Cal.
Specifications GATED, START/STOP and TIMED controlled by setting arming conditions Input Frequency: DC, 1 H z - 300 MHz, on the free input channels. Statistics 100 Hz - 300 MHz default and pacing allowed. (higher LF limit means higher meas. speed) Mode: Timestamping A, B Resolution:...
2U (90 mm) Heavy-duty hard transport Height: 395 mm Depth: case Weight: Option 29/90: TimeView for CNT-90/91, Net 2.7 kg (5.8 lb) CNT-91: modulation domain analysis Shipping 3.5 kg (7.5 lb) CNT-91R: Option 90/01: Cal. certificate w. protocol; standard oscillator Option 90/06: Cal.
Specifications Timebase Options CNT-91 Product Family '9X' Standard Option 19/90 Option 30/90 Option 40/90 Option UCXO OCXO OCXO OCXO Timebase Type Uncertainty due to: -Calibration adjustment tolerance @ +23 °C ± 3 ° C <1x10 <5x10 <1x10 <3x10 -Aging per 24 h <5x10 <5x10 <3x10...
Specifications Input and Output Freq. Range: up to 300 MHz Analog Noise Specifications Reduction Filter: Nom. 100 kHz, RC type Digital LP Filter: 1 Hz - 50 MHz using trigger hold-off Trigger Inputs A and B Indicators: Max. Voltage Alternative data within parentheses refer to w/o Damage input attenuator setting x10.
Specifications Timebase Options CNT-91 Product Family '9X' Standard Option 19/90 Option 30/90 Option 40/90 Option UCXO OCXO OCXO OCXO Timebase Type Uncertainty due to: -Calibration adjustment tolerance @ +23 °C ± 3 ° C <1x10 <5x10 <1x10 <3x10 -Aging per 24 h <5x10 <5x10 <3x10...
Specifications Timebase Explanations After 3 months of continuous operation. Specifications After 1 year, aging during 1 year: CNT-91R <5x10 ; long-term < 2 x 10 / 10 years. 3)After 1 year of operation. Uncertainty Product Family '9X' Rubidium <6x10 the first year of operation. Timebase Type Uncertainty due to: Calibration Adjustment Tolerance is the...
Specifications Timebase Explanations After 3 months of continuous operation. Specifications After 1 year, aging during 1 year: CNT-91R <5x10 ; long-term < 2 x 10 / 10 years. 3)After 1 year of operation. Uncertainty Product Family '9X' Rubidium <6x10 the first year of operation. Timebase Type Uncertainty due to: Calibration Adjustment Tolerance is the...
Specifications Limit Qualifier: Alarm if value > limit 2 Capture & store values above Alarm if value < limit 1 limit 2 Capture & store values Alarm if limit 1 < value < limit 2 below limit 1 Capture & store values inside Alarm if value >...
Specifications Introduction Frequency Burst A, B, C Frequency and PRF of repetitive burst signals Only values with tolerances or limits are can be measured without external control guaranteed data. Values without tolerances sig-nal and with selectable start arming delay. are informative data, without guarantee. Functions: Frequency in burst (Hz) PRF (Hz)
Specifications Introduction Frequency Burst A, B, C Frequency and PRF of repetitive burst signals Only values with tolerances or limits are can be measured without external control guaranteed data. Values without tolerances sig-nal and with selectable start arming delay. are informative data, without guarantee. Functions: Frequency in burst (Hz) PRF (Hz)
Specifications Period A, B Single to determine sign (A before B or A after B) Range A, B: 3.3 ns - 1000 s ■ Display: Resolution: 50 ps rms typical ■ Display: Main Parameter: Time interval Aux. Parameters: None Main Parameter: Period Aux.
Specifications Measurement Hyst = 30 mV ± 1% of trig lvl (DC to 1 kHz) for Pulse Width & Duty Factor Uncertainties Hyst = 6 mV ± 1 % of trig lvl (DC to l kHz) for other measurement functions. Example for phase with sinewave signals and 0 Random Uncertainties (1) V trigger levels (attenuator setting xl):...
Specifications Period A, B Single to determine sign (A before B or A after B) Range A, B: 3.3 ns - 1000 s ■ Display: Resolution: 50 ps rms typical ■ Display: Main Parameter: Time interval Aux. Parameters: None Main Parameter: Period Aux.
Specifications Time Interval Error (TIE) A, B with 4 time stamps, 2 consecutive trig. A + two Normalized Period Back-to-Back measurements, consecutive trig. B to calculated as: determine sign of phase. ■ Display: Ti = individual period back-to-back and T Main Parameter: Phase reference period value.
Specifications Frequency & Period Frequency Ratio f ■ Random Uncertainty (rms) ■ Typical Random Uncertainty (rms) NOTE. Frequency Ratio is an auxiliary mea- Smart Mode surement function, intended to give an indica- For measuring times <200 ms and if Smart tion, with no guaranteed specification.
Specifications Time Interval Error (TIE) A, B with 4 time stamps, 2 consecutive trig. A + two Normalized Period Back-to-Back measurements, consecutive trig. B to calculated as: determine sign of phase. ■ Display: Ti = individual period back-to-back and T Main Parameter: Phase reference period value.
Specifications GATED, START/STOP and TIMED controlled by setting arming conditions Input Frequency: DC, 1 H z - 300 MHz, on the free input channels. Statistics 100 Hz - 300 MHz default and pacing allowed. (higher LF limit means higher meas. speed) Mode: Timestamping A, B Resolution:...
Specifications Calibration General Specifications Mode: Closed case, menu-con- trolled. Calibration Input: Environmental Data Password ON or OFF Protection: Class: MIL-PRF-28800F, Class 3 Input Frequencies 1.0, 1.544, 2.048, 5.0 or 10.0 Operat. Temp: 0 °C to +50 (+45)* °C used for TB Storage Temp: -40 °C to +71 °C, non-con- Calibration:...
Specifications GATED, START/STOP and TIMED controlled by setting arming conditions Input Frequency: DC, 1 H z - 300 MHz, on the free input channels. Statistics 100 Hz - 300 MHz default and pacing allowed. (higher LF limit means higher meas. speed) Mode: Timestamping A, B Resolution:...
Specifications Input and Output Freq. Range: up to 300 MHz Analog Noise Specifications Reduction Filter: Nom. 100 kHz, RC type Digital LP Filter: 1 Hz - 50 MHz using trigger hold-off Trigger Inputs A and B Indicators: Max. Voltage Alternative data within parentheses refer to w/o Damage input attenuator setting x10.
Specifications Power Requirements Line Voltage: 90-265 V , 45-440 Hz Power Consump- tion CNT-91: <40 W CNT-91R: <60 W Dimensions & Weight Width: 1/2 x 19" (210 mm) 2U(90 mm) Height: 395 mm Depth: Weight: Net 2.7 kg (5.8 lb) CNT-91: Shipping 3.5 kg (7.5 lb) CNT-91R:...
Specifications Input and Output Freq. Range: up to 300 MHz Analog Noise Specifications Reduction Filter: Nom. 100 kHz, RC type Digital LP Filter: 1 Hz - 50 MHz using trigger hold-off Trigger Inputs A and B Indicators: Max. Voltage Alternative data within parentheses refer to w/o Damage input attenuator setting x10.
Specifications Timebase Explanations After 24 hours of continuous operation, and Specifications at a quasi-constant temperature of ± within 5°C the operating range CNT-91R/71B After 3 months of continuous operation. Timebase Type Rubidium After 1 year, aging during 1 year: Uncertainty due to: <5x10 ;...
Specifications Auxiliary Functions Max. Voltage w/o Damage: 12 V PIN diode prot. rms, Connector: Type N female Trigger Hold-Off 20 ns - 2 s, 10 ns resol. Time Delay Rear Panel Inputs & Outputs Range: Ref. Input:: 1, 5 or 10 MHz; External Start/Stop Arming 0 .
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Specifications Limit Qualifier: Alarm if value > limit 2 Capture & store values above Alarm if value < limit 1 limit 2 Capture & store values Alarm if limit 1 < value < limit 2 below limit 1 Capture & store values inside Alarm if value >...
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Specifications This page is intentionally left blank. 8-60 USER MANUAL ● CNT 9x Series ● Rev.20 December 2017...
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Specifications Limit Qualifier: Alarm if value > limit 2 Capture & store values above Alarm if value < limit 1 limit 2 Capture & store values Alarm if limit 1 < value < limit 2 below limit 1 Capture & store values inside Alarm if value >...
Specifications Interface SH1, AH1, T6, L4, SR1, TimeView™ RL1, DC1, DT1, E2 Functions: Max. Meas. Rate 15 k readings/s (block) 650 This software package is intended for ad- Via GPIB: readings/s (individual) 4 k vanced Modulation Domain analysis and runs readings/s (talk only) on any 32-bit Windows®...
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Specifications Measurement Hyst = 30 mV ± 1% of trig lvl (DC to 1 kHz) for Pulse Width & Duty Factor Uncertainties Hyst = 6 mV ± 1 % of trig lvl (DC to l kHz) for other measurement functions. Example for phase with sinewave signals and 0 Random Uncertainties (1) V trigger levels (attenuator setting xl):...
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Index ±1 cycle count error ......4-9 Battery Supply checking ......7-13, 7-14 Burst AC/DC coupling ........3-3 Frequency (CW)......4-5 Allan deviation ........6-3 AM modulated signals ......4-8 Carrier wave frequency AM ....4-8 Aperture Carrier wave frequency FM....4-6 See Measuring time Channel Arming...
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Specifications Measurement Hyst = 30 mV ± 1% of trig lvl (DC to 1 kHz) for Pulse Width & Duty Factor Uncertainties Hyst = 6 mV ± 1 % of trig lvl (DC to l kHz) for other measurement functions. Example for phase with sinewave signals and 0 Random Uncertainties (1) V trigger levels (attenuator setting xl):...
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Specifications Frequency & Period Frequency Ratio f ■ Random Uncertainty (rms) ■ Typical Random Uncertainty (rms) NOTE. Frequency Ratio is an auxiliary mea- Smart Mode surement function, intended to give an indica- For measuring times <200 ms and if Smart tion, with no guaranteed specification.
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Digits Blank........2-17 ratio ..........4-4 Frequency versus time Display contrast adjusting....2-8 See Profiling Function Distortion........... 3-8 period .......... 4-13 Drift ........... 6-4 ratio ..........4-4 See Also Long time instability Drift measurements......5-13 Duty cycle Gate See Duty factor indicator.........
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Specifications Frequency & Period Frequency Ratio f ■ Random Uncertainty (rms) ■ Typical Random Uncertainty (rms) NOTE. Frequency Ratio is an auxiliary mea- Smart Mode surement function, intended to give an indica- For measuring times <200 ms and if Smart tion, with no guaranteed specification.
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Specifications Calibration General Specifications Mode: Closed case, menu-con- trolled. Calibration Input: Environmental Data Password ON or OFF Protection: Class: MIL-PRF-28800F, Class 3 Input Frequencies 1.0, 1.544, 2.048, 5.0 or 10.0 Operat. Temp: 0 °C to +50 (+45)* °C used for TB Storage Temp: -40 °C to +71 °C, non-con- Calibration:...
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Limits ..........6-6 LOCAL LOCKOUT mode....2-8 No trig LOCAL mode........2-8 display message......4-10 Long time instability ......6-5 Noise..........3-6 Low-pass filter digital..........3-4 Output ..........2-18 Overdrive ........4-18 Manual arming ........... 5-6 Mathematics Period ........4-13, 4-14 and Statistics together....
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Specifications Calibration General Specifications Mode: Closed case, menu-con- trolled. Calibration Input: Environmental Data Password ON or OFF Protection: Class: MIL-PRF-28800F, Class 3 Input Frequencies 1.0, 1.544, 2.048, 5.0 or 10.0 Operat. Temp: 0 °C to +50 (+45)* °C used for TB Storage Temp: -40 °C to +71 °C, non-con- Calibration:...
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Specifications Power Requirements Line Voltage: 90-265 V , 45-440 Hz Power Consump- tion CNT-91: <40 W CNT-91R: <60 W Dimensions & Weight Width: 1/2 x 19" (210 mm) 2U(90 mm) Height: 395 mm Depth: Weight: Net 2.7 kg (5.8 lb) CNT-91: Shipping 3.5 kg (7.5 lb) CNT-91R:...
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checking........7-8 in phase measurements ....4-22 Restart ..........5-2 RF Inputs TIE ............ 4-16 checking........7-12 Time ..........4-15 Rise/Fall time........4-16 duty factor ........4-17 Rubidium oscillator period ......... 4-13 checking........7-8 pulse width ......... 4-17 rise/fall ........4-16 time interval ........
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Specifications Power Requirements Line Voltage: 90-265 V , 45-440 Hz Power Consump- tion CNT-91: <40 W CNT-91R: <60 W Dimensions & Weight Width: 1/2 x 19" (210 mm) 2U(90 mm) Height: 395 mm Depth: Weight: Net 2.7 kg (5.8 lb) CNT-91: Shipping 3.5 kg (7.5 lb) CNT-91R:...
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Specifications Timebase Explanations After 24 hours of continuous operation, and Specifications at a quasi-constant temperature of ± within 5°C the operating range CNT-91R/71B After 3 months of continuous operation. Timebase Type Rubidium After 1 year, aging during 1 year: Uncertainty due to: <5x10 ;...
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converting auto to manual..... 3-5 how to use........3-7 manual ......... 3-4 setting speed......... 3-5 Units ..........2-17 step response profiling ....5-14 Voltage ..........4-27 checking ........ 7-6, 7-8 function ........4-27 X max ..........6-3 X min ..........6-3 X p-p ...........
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Specifications Timebase Explanations After 24 hours of continuous operation, and Specifications at a quasi-constant temperature of ± within 5°C the operating range CNT-91R/71B After 3 months of continuous operation. Timebase Type Rubidium After 1 year, aging during 1 year: Uncertainty due to: <5x10 ;...
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Specifications This page is intentionally left blank. 8-60 USER MANUAL ● CNT 9x Series ● Rev.22 February 2020...
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Sales and Service Office For additional product information, customer support and service, please contact Pendulum Instruments at the following addresses: Pendulum Instruments Sp. z.o.o. ul.Lotnicza 37vvvvvvvvvvvvvvvvvvv 80-297 Baninovvvvvvvvvvvvvvvvvvv Poland Office Address: As above Shipping Address: As above phone:+48 (58) 681 89 01...
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Index ±1 cycle count error ......4-9 Battery Supply checking ......7-13, 7-14 Burst AC/DC coupling ........3-3 Frequency (CW)......4-5 Allan deviation ........6-3 AM modulated signals ......4-8 Carrier wave frequency AM ....4-8 Aperture Carrier wave frequency FM....4-6 See Measuring time Channel Arming...
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Index ±1 cycle count error ......4-9 Battery Supply checking ......7-13, 7-14 Burst AC/DC coupling ........3-3 Frequency (CW)......4-5 Allan deviation ........6-3 AM modulated signals ......4-8 Carrier wave frequency AM ....4-8 Aperture Carrier wave frequency FM....4-6 See Measuring time Channel Arming...
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Digits Blank........2-17 ratio ..........4-4 Frequency versus time Display contrast adjusting....2-8 See Profiling Function Distortion........... 3-8 period .......... 4-13 Drift ........... 6-4 ratio ..........4-4 See Also Long time instability Drift measurements......5-13 Duty cycle Gate See Duty factor indicator.........
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New Look A new front panel design will be introduced gradually starting with the model CNT-91R. It will eventually be applied to all models in the '9X' series of counters. The fundamental layout is unchanged, so the instructions given in the main manual are still valid. The new look can be seen below.
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Digits Blank........2-17 ratio ..........4-4 Frequency versus time Display contrast adjusting....2-8 See Profiling Function Distortion........... 3-8 period .......... 4-13 Drift ........... 6-4 ratio ..........4-4 See Also Long time instability Drift measurements......5-13 Duty cycle Gate See Duty factor indicator.........