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Related Manuals for Keysight N1923/4A
Summary of Contents for Keysight N1923/4A
- Page 1 Keysight N1923/4A Wideband Power Sensor Service Guide...
- Page 2 Conformity. understood and met. where in the EULA. Keysight shall be under no obligation to update, revise or otherwise modify the Software. With WARNING respect to any technical data as defined by FAR 2.101, pursuant to FAR...
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Page 3: Safety Considerations
Failure to comply with these precautions or with specific warnings elsewhere in this manual violates safety standards for design, manufacture, and intended use of the instrument. Keysight Technologies assumes no liability for the customer’s failure to comply with these requirements. -
Page 4: Environmental Conditions
Environmental Conditions The N1923/4A is designed for indoor use and in an area with low condensation. The table below shows the general environmental requirements for this instrument. Environmental cond ition Requirement Operating condition – 0 °C to 55 °C Temperature Storage condition –... -
Page 5: Regulatory Information
Regulatory Information The N1923/4A complies with the following Electromagnetic Compatibility (EMC) compliances: EMC compliance – IEC 61326-1:2005/EN 61326-1:2006 – Canada: ICES/NMB-001:Issue 4, June 2006 – Australia/New Zealand: AS/NZS CISPR11:2004 Keysight N1923/4A Service Guide... -
Page 6: Regulatory Markings
Forty years is the expected useful life Cet appareil ISM est conforme a la of the product. norme NMB-001 du Canada. ISM GRP.1 Class A indicates that this is an Industrial Scientific and Medical Group 1 Class A product. Keysight N1923/4A Service Guide... -
Page 7: Waste Electrical And Electronic Equipment (Weee) Directive
To return this unwanted instrument, contact your nearest Keysight Service Center, or visit http://about.keysight.com/en/companyinfo/environment/takeback.shtml for more information. Sales and Technical Support To contact Keysight for sales and technical support, refer to the support links on the following Keysight websites: – www.keysight.com/find/xxxxx (product-specific information and support, software and documentation updates) –... -
Page 8: In This Guide
Chapter 3 describes the operation and functions of the N1923/4A assembly. Chapter 4, "Repair Guide" Chapter 4 contains information on repair and replaceable parts of the N1923/4A. This chapter also explains how to assemble and disassemble the N1923/4A. Chapter 5, "Contacting Keysight"... -
Page 9: Table Of Contents
...........38 Keysight N1923/4A Service Guide... - Page 10 ......45 Returning the N1923/4A for Service ......46 Packaging the N1923/4A for shipment .
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Page 11: List Of Figures
......35 Figure 4-1 Removing the N1923/4A shell ....40... - Page 12 THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight N1923/4A Service Guide...
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Page 13: List Of Tables
List of Tables Table 4-1 Replaceable parts list for the N1923/4A ...39 Keysight N1923/4A Service Guide... - Page 14 THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight N1923/4A Service Guide...
- Page 15 Keysight N1923/4A Wideband Power Sensor Service Guide General Information Specifications and Characteristics Cleaning This chapter provides the specifications and maintenance information of the N1923/4A wideband power sensor.
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Page 16: General Information
General Information Specifications and Characteristics For the N1923/4A specifications and characteristics, refer to the N1923/4A datasheet at http://literature.cdn.keysight.com/litweb/pdf/5990-8126EN.pdf Keysight N1923/4A Service Guide... -
Page 17: Cleaning
General Information Cleaning Use a clean, water-dampened cloth to clean the body of the N1923/4A. Connector care A solution of pure isopropyl or ethyl alchohol can be used to clean the connector but make sure to keep in mind on its flammable nature. - Page 18 General Information THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight N1923/4A Service Guide...
- Page 19 System-Level Rise and Fall Time Performance Test Zero Set Performance Test in System Level Adjustments This chapter contains the performance test procedures which verify that the N1923/4A is operating within its published specifications. This chapter also provides information on adjustments performed after a performance test fails.
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Page 20: Performance Tests And Adjustments
Wideband power sensor N1921A/N1922A SWR: ≤1.20 at 1 GHz Cable adapter 11730A sensor cable adapter N1911A-200 N-type-to-SMA adapter N-type (m) to 2.4 mm SMA (f) 11903D BNC (m) to SMB (f) Trigger cable U2032A Characteristic impedance: 50 Ω Keysight N1923/4A Service Guide... -
Page 21: Voltage Standing Wave Ratio (Vswr) Performance Test
N1923A and 85056A/D for the N1924A). Perform calibration for the open, short, and load circuits of the network analyzer. 4 After calibration, connect the N1923/4A to the test port of the network analyzer. Turn on Correction on the network analyzer to perform the VSWR measurement. -
Page 22: Sensor Accuracy Performance Test
Performance Tests and Adjustments Sensor Accuracy Performance Test The purpose of this test is to verify the accuracy of the N1923/4A after a period of usage to ensure that the N1923/4A is still within its published specifications. This test requires the following equipment: –... - Page 23 9 Turn off the RF output of the signal source. 10 Remove the standard sensor from the N1912A channel A. 11 Connect the device-under-test (DUT, N1923/4A) to the N1912A channel A. 12 The test equipment setup is as shown below:...
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- Page 25 [a] Beyond 70% humidity, an additional 0.6% must be added to the values. 20 Repeat steps 5 to 19 by sweeping through the power level from –25 dBm to 10 dBm with a frequency of 50 MHz. Keysight N1923/4A Service Guide...
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Page 26: System-Level Rise And Fall Time Performance Test
– PSG analog signal generator (E8257D) – Peak power analyzer (8990B) – Diode detector (33334EZ) – Oscilloscope (Infiniium MSO 9104A) – Trigger cable (U2032A) – Sensor (N1923/4A, as DUT) System specifications: – Rise/fall time: ≤ 5.5 nsecs ± % error (Refer to Figure 3-2 on page –... -
Page 27: Figure 2-1 Screenshot Of The Oscilloscope Measurement Display
Performance Tests and Adjustments Figure 2-1 Screenshot of the oscilloscope measurement display 4 Connect the N1923/4A to the E8257D and 8990B as shown below: 8990B E8257D N1923/4A 5 Generate the same pulse signal as previous. 6 Press Auto Scale on the 8990B to scale the pulse signal to the optimum display. - Page 28 Bandwidth: MED, Power level: 10 dBm, Pulse period: 100 μsecs, 25 nsecs Duty cycle: 50% Bandwidth: HIGH, Power level: 10 dBm, Pulse period: 0.2 μsecs, 13 nsecs Duty cycle: 50% Bandwidth: HIGH, Power level: 10 dBm, Pulse period: 1 μsec, 13 nsecs Duty cycle: 50% Keysight N1923/4A Service Guide...
- Page 29 9 Repeat the above steps for the pulse signal with different pulse periods and different video bandwidth settings. Record all the readings in the above table. 10 Compare the recorded readings to the specifications in the table. If the test fails, refer to “Adjustments” on page 32. Keysight N1923/4A Service Guide...
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Page 30: Zero Set Performance Test In System Level
– <200 nW (frequency >500 MHz) – <550 nW (frequency <500 MHz) Test procedure 1 Turn on the 8990B. 2 Connect the N1923/4A to the 8990B as shown below. Allow the system to warm up for approximately an hour. 8990B N1923/4A 3 Set the 8990B RF input channel 1 frequency to 1 GHz. - Page 31 10 Collect each mean value of the average power reading for one minute. The mean value is the system zero set value for the 8990B with the N1923/4A. 11 If the calculated zero set value is out of specification (>200 nW), refer to “Adjustments”...
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Page 32: Adjustments
N1923/4A. The N1923/4A is required to be returned to Keysight for adjustments. To arrange this, contact the Keysight Service Center. Refer to Contact us on the last page of this guide for information. Keysight N1923/4A Service Guide... - Page 33 Keysight N1923/4A Wideband Power Sensor Service Guide Theory of Operation Theory of Operation This chapter describes the operation and functions of the N1923/4A assembly.
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Page 34: Theory Of Operation
Figure 3-1) integrates a DC reference source and switching circuits into each N1923/4A, so that you can zero and calibrate the N1923/4A while it is connected to a device-under-test. This feature removes the need for connection and disconnection from the calibration source, thereby reducing test times, measurement uncertainty, and wear and tear on connectors. -
Page 35: Figure 3-2 Measured Rise Time Percentage Error Versus Signal-Under-Test Rise Time
All the compensation data is downloaded to the power meter/peak power analyzer at power-on or when the N1923/4A is connected. Advanced algorithms are used to quickly and accurately evaluate the N1923/4A against this model, without requiring the power meter/peak power analyzer to interpolate the calibration factors and linearity curves. - Page 36 Theory of Operation THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight N1923/4A Service Guide...
- Page 37 Keysight N1923/4A Wideband Power Sensor Service Guide Repair Guide Repair Replaceable Parts Disassembly/Reassembly Procedure This chapter contains information on repair and replaceable parts of the N1923/ 4A. This chapter also explains how to assemble and disassemble the N1923/4A.
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Page 38: Repair Guide
Repair Guide Repair There are no serviceable parts inside the N1923/4A. If the N1923/4A is defective, send it back to the nearest Keysight Service Center for repair. The entire “module” of the defective N1923/4A will be replaced with an appropriate replacement... -
Page 39: Replaceable Parts
The following figure illustrates the parts breakdown of the N1923/4A which identifies all the replaceable parts. If you want to order a part, quote the Keysight part number, specify the quantity required, and address the order to the nearest Keysight Sales and Service office. -
Page 40: Disassembly/Reassembly Procedure
N1923/4A inoperative. Disassembly procedure Use the following steps to disassemble the N1923/4A: – At the rear of the N1923/4A, insert the blade of a screwdriver between the plastic shells (refer to Figure 4-1). To prevent damage to the plastic shells, use a screwdriver blade as wide as the slot between the two shells. - Page 41 Repair Guide Keysight N1923/4A Service Guide...
- Page 42 Repair Guide THIS PAGE HAS BEEN INTENTIONALLY LEFT BLANK. Keysight N1923/4A Service Guide...
- Page 43 Keysight N1923/4A Wideband Power Sensor Service Guide Contacting Keysight Introduction Returning the N1923/4A for Service This chapter explains the appropriate actions to take if you have a problem with your N1923/4A.
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Page 44: Contacting Keysight
The serial number can be obtained from the serial number label. The serial number label is attached to the side panel of the N1923/4A. This label has two instrument identification entries. The first provides the instrument serial number and the second provides the identification number for each option built into the instrument. -
Page 45: Recommended Calibration Interval
Contacting Keysight SERIAL NUMBER SER MY12345678 Keysight MADE IN MALAYSIA Figure 5-1 Serial number Recommended calibration interval Keysight recommends a one-year calibration cycle for the N1923/4A. Keysight N1923/4A Service Guide... -
Page 46: Returning The N1923/4A For Service
91 kg (200 lb.) bursting strength. The carton must be large and strong enough to accommodate the N1923/4A and allow at least 3 to 4 inches on all sides of the N1923/4A for packing material. – Surround the N1923/4A with at least 3 to 4 inches of packing material, or enough to prevent the N1923/4A from moving in the carton. - Page 47 This information is subject to change without notice. Always refer to the Keysight website for the latest revision. © Keysight Technologies 2011 - 2020 Edition 9, May 11, 2020 Printed in Malaysia N1923-90003 www.keysight.com...