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Tektronix AWVG1 User Manual

Tektronix AWVG1 User Manual

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User Manual

AWVG1
Wideband Video Generator
070-9051-02
This document applies to firmware version 2.0
and above.
www.tektronix.com

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Summary of Contents for Tektronix AWVG1

  • Page 1: User Manual

    User Manual AWVG1 Wideband Video Generator 070-9051-02 This document applies to firmware version 2.0 and above. www.tektronix.com...
  • Page 2 Copyright © Tektronix, Inc. All rights reserved. Tektronix products are covered by U.S. and foreign patents, issued and pending. Information in this publication supercedes that in all previously published material. Specifications and price change privileges reserved. Tektronix, Inc., P.O. Box 500, Beaverton, OR 97077...
  • Page 3 Tektronix, with shipping charges prepaid. Tektronix shall pay for the return of the product to Customer if the shipment is to a location within the country in which the Tektronix service center is located.
  • Page 4 H Eliminates unexpected service expenses For Information and Ordering For more information or to order Service Assurance, contact your Tektronix representative and provide the information below. Service Assurance may not be available in locations outside the United States of America.

  • Page 5: Table Of Contents

    ......... 3- -13 AWVG1 Wideband Video Generator User Manual...
  • Page 6 ..........D- - 2 AWVG1 Wideband Video Generator User Manual...
  • Page 7 ..........D- - 8 Glossary and Index AWVG1 Wideband Video Generator User Manual...
  • Page 8 Figure 1- -2: Bullseye signal as displayed on a television monitor. 1- -4 Figure 2- -1: Basic menu structure for the AWVG1 Wideband Video Generator module ........
  • Page 9 Table A- -1: AWVG1 Generator module outputs ....A- -1 Table A- -2: AWVG1 Generator module switcher input ..A- -2 Table A- -3: Certifications and compliances .
  • Page 10 Table of Contents AWVG1 Wideband Video Generator User Manual...

  • Page 11: General Safety Summary

    DANGER indicates an injury hazard immediately accessible as you read the marking. WARNING indicates an injury hazard not immediately accessible as you read the marking. CAUTION indicates a hazard to property including the product. AWVG1 Wideband Video Generator User Manual...
  • Page 12 DANGER Protective Ground ATTENTION Double High Voltage (Earth) Terminal Refer to Manual Insulated Certifications and Refer to the specifications section for a listing of certifications and compliances Compliances that apply to this product. viii AWVG1 Wideband Video Generator User Manual...

  • Page 13: Service Safety Summary

    Use Care When Servicing With Power On. Dangerous voltages or currents may exist in this product. Disconnect power, remove battery (if applicable), and disconnect test leads before removing protective panels, soldering, or replacing components. To avoid electric shock, do not touch exposed connections. AWVG1 Wideband Video Generator User Manual...
  • Page 14 Service Safety Summary AWVG1 Wideband Video Generator User Manual...

  • Page 15: Preface

    Related Manuals The following documents are also available: H The AWVG1 Wideband Video Generator Service Manual describes how to service the module. This optional manual must be ordered separately. H The TG 2000 Signal Generation Platform User Manual describes how to use the TG 2000 Platform.

  • Page 16: Contacting Tektronix

    Preface Contacting Tektronix Product For questions about using Tektronix measurement products, call Support toll free in North America: 1-800-833-9200 6:00 a.m. - - 5:00 p.m. Pacific time Or contact us by e-mail: tm_app_supp@tek.com For product support outside of North America, contact your local Tektronix distributor or sales office.

  • Page 17: Getting Started

    Getting Started...

  • Page 19: Figure 1- 1: Simplified Block Diagram Of The Awvg1 Generator Module

    Getting Started The AWVG1 Wideband Video Generator module is designed to be installed in the TG 2000 Signal Generation Platform. The module generates wideband analog signals for use in television systems. This 30 MHz bandwidth generator is capable of 12-bit precision. The primary function of the module is to provide zone plate and sweep signals.

  • Page 20: Accessories

    Table 1- 1: Standard and Optional Accessories Accessory Typo of Accessory Part Number AWVG1 Wideband Video Generator User Manual Standard 070-9051-XX T-10 Torx Tip Standard 003-1604-XX Screws (2 ea.)

  • Page 21: Functional Check

    Generator module rear panel, and terminate the monitor’s loop-through connector in 75 Ω. 5. Terminate the AWVG1 Generator module outputs 2 and 3 in 75 Ω. (This is necessary for the module self cal.) 6. Wait 20 minutes for the instrument to warm up.

  • Page 22: Figure 1- 2: Bullseye Signal As Displayed On A Television Monitor

    Using a 75 Ω coaxial cable, connect a television test signal from a source such as an AVG1 module, to the AWVG1 module External Input. b. Check the output of the AWVG1 module on the television monitor in pulse cross mode. Check that the signal is displayed correctly. Check that the appropriate burst for your video format is present in the signal.

  • Page 23: Operating Basics

    Operating Basics...

  • Page 25: Functional Overview

    Functional Overview This section provides an overview of the AWVG1 Generator module. If you are not familiar with the operation of the TG 2000 Signal Generation Platform, refer to the TG 2000 Signal Generation Platform User Manual before reading this section.

  • Page 26: Outputs

    (such as the AVG1 Generator module) as the output signal for the AWVG1 Generator module. To do this, you must select External Input as the AWVG1 Generator module output signal. For information on how to do this, refer to Select the Output Signal on page 2- -5.

  • Page 27: Operating Procedures

    No special test equipment is necessary for these procedures, but it will be helpful to view the signals on a monitor. To do this, connect the module’s signal output Ω Ω to a television monitor, using a 75 cable and a 75 termination. 2- 3 AWVG1 Wideband Video Generator User Manual...

  • Page 28: Power On And Select The Module

    Troubleshooting in the AWVG1 Wideband Video Generator Service Manual. NOTE. When the platform is shipped from the factory, the module is named AWVG1:X where X represents the slot number in which the module is installed. However, you can edit the module name by selecting the module and then pushing the Edit button.

  • Page 29: Select The Output Signal

    Operating Procedures Select the Output Signal You can select any of the AWVG1 Generator module signals that are loaded in your instrument to be the output signal, supplied on the three rear-panel outputs. To select the output signal, follow these steps: 1.
  • Page 30 Vertical Sine as the output signal. 5. To change to a different signal type, such as Multiburst, touch the corre- sponding icon on the display. Then select the signal as shown in step 4. 2- 6 AWVG1 Wideband Video Generator User Manual...

  • Page 31: Select The Output Signal 2

    EXTERNAL INPUT icon to highlight it. For example, you can connect a coaxial cable from the output of the AVG1 Generator module to the input of the AWVG1 Generator module, and then select EXTERNAL INPUT. This will supply the AVG1 Generator module signal as the output on the AWVG1 Generator module.

  • Page 32: Active Signal Parameters

    Signal Parameters window, shown below. Changes that you make to parameters in any of these windows affect only the active signal. To enter the Active Signal Parameters window for the AWVG1 Generator module, follow these steps: 1. Select the module if not already selected.
  • Page 33 You can view detailed information about the selected signal. 1. In the Active Signal Parameters window, shown on page 2- -8, touch Signal Information. 2. View the signal information, as shown in the following illustration. 2- 9 AWVG1 Wideband Video Generator User Manual...

  • Page 34: Video Parameters

    Signal Parameters window appears, as shown on page 2- -8. Touch the Video icon. 3. The Video Parameters window appears. Select the parameter you want to change using the Navigation cursor keys. The example below shows Marker 3 selected. 2- 10 AWVG1 Wideband Video Generator User Manual...
  • Page 35 Save As or Quit. 10. Touch Save As. A text entry window appears, showing the current signal name preceded by an underscore. (All user-defined signals are preceded by an underscore, and you cannot delete it.) 2- 11 AWVG1 Wideband Video Generator User Manual...
  • Page 36 Set 1 was used to enter an exclamation mark. 13. When you have entered the desired text, touch OK. Now you have a new signal defined by the parameters you set. 2- 12 AWVG1 Wideband Video Generator User Manual...

  • Page 37: Zone Plate Test Signal

    Plate icon to select the zone plate signal you want to modify. (This procedure uses the 625 Bullseye signal.) 2. Touch the Active Signal Parameters icon at the bottom of the window. The Active Signal Parameters window appears, as shown on page 2- -8. 2- 13 AWVG1 Wideband Video Generator User Manual...
  • Page 38 After you name the new signal, you can see the new name displayed in the status bar. Note that there is no Pattern Control Parameter, and that there are no dependant (indented) parameters. 2- 14 AWVG1 Wideband Video Generator User Manual...
  • Page 39 Go back to the Test Signals window and select a different zone plate signal, such as H Sine. Now go to the zone plate Parameters window and note the dependent parameters for that signal. 2- 15 AWVG1 Wideband Video Generator User Manual...

  • Page 40: Module Parameters

    Parameters window, shown below. Changes that you make to parameters in any of these windows affect the entire module. To enter the Module Parameters window for the AWVG1 Generator module, follow these steps: 1. Select the module, if not already selected.

  • Page 41: Timing

    5. Touch Quit to exit. Timing You can set the horizontal and vertical timing of the AWVG1 Generator module with respect to the BG1 Generator module, using the Module Parameters window. Changes you make to timing affect all signals for the AWVG1 Generator module.
  • Page 42 4. If you want to set horizontal and vertical values to zero, touch Reset All. 5. When you have made all desired changes, touch Quit to exit the Timing window. 6. Touch Quit to exit the Module Parameters window. All changes are saved. 2- 18 AWVG1 Wideband Video Generator User Manual...

  • Page 43: Syntax And Commands

    Syntax and Commands...

  • Page 45: Syntax

    UP. Use this argument to increase the parameter value one increment as defined by the :STEP value. DOWN. Use this argument to decrease the parameter value one increment as defined by the :STEP value. 3- 1 AWVG1 Wideband Video Generator User Manual...

  • Page 46: Argument Example

    The following example demonstrates the effect of each of the arguments when used with a step value. 1. :INSTrument:SELect ”AWVG1:#” selects the AWVG1 Generator module located in the slot number indicated by the “#” symbol. 2. :OUTPut:STATe ON enables the module and displays the loaded test signal.

  • Page 47: Scpi Commands And Queries

    For more information about SCPI commands, programming structure, and TG 2000 Signal Generation Platform status and events, refer to the TG 2000 Signal Generation Platform User Manual. 3- 3 AWVG1 Wideband Video Generator User Manual...
  • Page 48 Syntax 3- 4 AWVG1 Wideband Video Generator User Manual...

  • Page 49: Functional Command Groups

    Use these commands to select the output characteristics of the module. Table 3- 2: :OUTPut commands Command Description :OUTPut:STATe(?) Set or query module output (enabled or disabled) :OUTPut:SOURce(?) Set or query the source of the AWVG1 output signal (internal or external) 3- 5 AWVG1 Wideband Video Generator User Manual...

  • Page 50: Sense

    Set or query the value of the KYT parameter :SOURce:ZONE:KT(?) Set or query the value of the KT parameter :SOURce:ZONE:KT2(?) Set or query the value of the KT2 parameter :SOURce:ZONE:TRESet:STATe(?) Set or query the state of the T parameter 3- 6 AWVG1 Wideband Video Generator User Manual...

  • Page 51: Output Subsystem

    OUTPut Subsystem The OUTPut subsystem enables the actual output of the AWVG1 Generator module. The OUTPut subsystem commands may release resources controlled by the signal manager or the clock manager. NOTE. The module must be selected with the INSTrument subsystem prior to using these commands.

  • Page 52: :Output:state

    OUTPut Subsystem :OUTPut:STATe(?) Use this command to set or query the state of the AWVG1 Generator module. Syntax :OUTPut:STATe <Boolean> :OUTPut:STATe? Parameters Command Query response <Boolean> = ON or 1, OFF or 0 1, 0 Default Value Errors and Events...

  • Page 53: Output:source(?)

    The :MMEM:LOAD:SIGNal command loads a signal to the module (output signal) and sets the OUTPut:SOURce to internal. See the TG 2000 Signal Generation Platform User Manual for detailed information about the :MMEM commands. 3- 9 AWVG1 Wideband Video Generator User Manual...
  • Page 54 OUTPut Subsystem 3- 10 AWVG1 Wideband Video Generator User Manual...

  • Page 55: Sense Subsystem

    TG 2000 Signal Generation Platform by correcting the module delay. The BG1 Generator module is the reference. A detailed description of the AWVG SENSe commands follows the Command Tree. Command Tree :SENSe :CORRection :MDELay :VERTical <numeric_value> :HORizontal <numeric_value> 3- 11 AWVG1 Wideband Video Generator User Manual...

  • Page 56: :Sense:correction:mdelay:vertical

    Settings will be retained through power cycle. Syntax :SENSe:CORRection:MDELay:VERTical <numeric_value> :SENSe:CORRection:MDELay:VERTical? Parameters Command Query response <numeric_value> = <NR1> <NRf> Default Value Errors and Events None Dependencies None Examples :SENS:CORR:MDEL:VERT 12 Command: :SENS:CORR:MDEL:VERT? Query: Response: Related Commands :SENSe:CORRection:MDELay:HORizontal 3- 12 AWVG1 Wideband Video Generator User Manual...

  • Page 57: :Sense:correction:mdelay:horizontal

    Syntax :SENSe:CORRection:MDELay:HORizontal <numeric_value> :SENSe:CORRection:MDELay:HORizontal? Parameters Command Query response <numeric_value> = <NR2> <NRf> Default Value 0.00 Errors and Events None Dependencies None Examples :SENS:CORR:MDEL:HOR 23.0 Command: :SENS:CORR:MDEL:HOR? Query: 23.0 Response: Related Commands :SENSe:CORRection:MDELay:VERTical 3- 13 AWVG1 Wideband Video Generator User Manual...
  • Page 58 SENSe Subsystem 3- 14 AWVG1 Wideband Video Generator User Manual...

  • Page 59: Source Subsystem

    They can enable the sync and burst, as well as adjust the sweep and zone plate parameters. When a K factor command contains a 2, it signifies a squared parameter. For example, KX2 signifies KXX. A description of the AWVG1 Generator module SOURce commands follows the Command Tree. Command Tree...

  • Page 60: Source:mvideo:sync(?)

    0.00 will be adjusted to 100.0. Units are percent. Syntax :SOURce:MVIDeo:SYNC <numeric_value> :SOURce:MVIDeo:SYNC? Parameters Command Query response <numeric_value> = <NRf> <NR2> Default Value 100.0 Errors and Events None Dependencies None Examples :SOUR:MVID:SYNC 0 Command: :SOUR:MVID:SYNC? Query: Response: Related Commands None 3- 16 AWVG1 Wideband Video Generator User Manual...

  • Page 61: :Source:mvideo:burst

    0.00 will be adjusted to 100.0. Syntax :SOURce:MVIDeo:BURSt <numeric_value> :SOURce:MVIDeo:BURSt? Parameters Command Query response <numeric_value> = <NRf> <NR2> Default Value 100.0 Errors and Events None Dependencies None Examples :SOUR:MVID:BURS 0 Command: :SOUR:MVID:BURS? Query: Response: Related Commands None 3- 17 AWVG1 Wideband Video Generator User Manual...

  • Page 62: :Source:mvideo:sweep:amplitude

    Default Value 714.3 Errors and Events None Dependencies The default value is based on the source file of the active signal. Examples :SOUR:SWE:MVID:AMPL 90 Command: :SOUR:SWE:MVID:AMPL? Query: 90.0000 Response: Related Commands None 3- 18 AWVG1 Wideband Video Generator User Manual...

  • Page 63: Source:sweep:frequency:start(?)

    Syntax :SOURce:SWEep:FREQuency:STARt <numeric_value> :SOURce:SWEep:FREQuency:STARt? Parameters Command Query response <numeric_value> = <NRf> <NR2> Default Value Errors and Events None Dependencies None Examples :SOUR:SWE:FREQ:STAR 15 Command: :SOUR:SWE:FREQ:STAR? Query: 15.0000 Response: Related Commands None 3- 19 AWVG1 Wideband Video Generator User Manual...

  • Page 64: Source:sweep:frequency:stop(?)

    Syntax :SOURce:SWEep:FREQuency:STOP <numeric_value> :SOURce:SWEep:FREQuency:STOP? Parameters Command Query response <numeric_value> = <NRf> <NR2> Default Value 10.00 Errors and Events None Dependencies None Examples :SOUR:SWE:FREQ:STOP 23 Command: :SOUR:SWE:FREQ:STOP? Query: 23.0000 Response: Related Commands None 3- 20 AWVG1 Wideband Video Generator User Manual...

  • Page 65: Source:sweep:marker5:Frequency(?)

    Syntax :SOURce:SWEep:MARKer5:FREQuency <numeric_value> :SOURce:SWEEP:MARKer5:FREQuency? Parameters Command Query response <numeric_value> = <NRf> <NR2> Default Value Errors and Events None Dependencies None Examples :SOUR:SWE:MARK3:FREQ 5.0 Command: :SOUR:SWE:MARK3:FREQ? Query: 5.0000 Response: Related Commands None 3- 21 AWVG1 Wideband Video Generator User Manual...

  • Page 66: Source:sweep:marker5:State(?)

    Command Query response <Boolean> = ON or 1, OFF or 0 1, 0 Default Value None Errors and Events None Dependencies None Examples :SOUR:SWE:MARK4:STAT ON Command: :SOUR:SWE:MARK4:STAT? Query: Response: Related Commands None 3- 22 AWVG1 Wideband Video Generator User Manual...

  • Page 67: Source:zone:frequency(?)

    Syntax :SOURce:ZONE:FREQuency <numeric_value> :SOURce:ZONE:FREQuency? Parameters Command Query response <numeric_value> = <NRf> <NR2> Default Value Not applicable Errors and Events None Dependencies None Examples :SOUR:ZONE:FREQuency 1.00 Command: :SOUR:ZONE:FREQuency? Query: Response: Related Commands None 3- 23 AWVG1 Wideband Video Generator User Manual...

  • Page 68: :Source:zone:amplitude

    Other K factors will automatically be adjusted with this command. If the dependent K factors are adjusted separately, then the original zone plate type no longer applies. Examples :SOUR:ZONE:AMPL 100 Command: :SOUR:ZONE:AMPL? Query: 100.0 Response: Related Commands None 3- 24 AWVG1 Wideband Video Generator User Manual...

  • Page 69: Source:zone:k(?)

    Syntax :SOURce:ZONE:K <numeric_value> :SOURce:ZONE:K? Parameters Command Query response <numeric_value> = <NRf> <NR2> Default Value Not applicable Errors and Events None Dependencies None Examples :SOUR:ZONE:K 0.4 Command: :SOUR:ZONE:K? Query: Response: Related Commands None 3- 25 AWVG1 Wideband Video Generator User Manual...

  • Page 70: Source:zone:kx(?)

    :SOURce:ZONE:KX <numeric_value> :SOURce:ZONE:KX? Parameters Command Query response <numeric_value> = <NRf> <NR2> Default Value Not applicable Errors and Events None Dependencies None Examples :SOUR:ZONE:PAR:KX 98.6 Command: :SOUR:ZONE:PAR:KX? Query: 98.6 Response: Related Commands :SOURce:ZONE:KX2 3- 26 AWVG1 Wideband Video Generator User Manual...

  • Page 71: Source:zone:kx2(?)

    :SOURce:ZONE:KX2? Parameters Command Query response <numeric_value> = <NRf> <NR2> Default Value Not applicable Errors and Events None Dependencies None Examples :SOUR:ZONE:PAR:KX2 - -45 Command: :SOUR:ZONE:PAR:KX2? Query: - -45.0 Response: Related Commands :SOURce:ZONE:KX 3- 27 AWVG1 Wideband Video Generator User Manual...

  • Page 72: Source:zone:kxt(?)

    Syntax :SOURce:ZONE:KXT <numeric_value> :SOURce:ZONE:KXT? Parameters Command Query response <numeric_value> = <NRf> <NR2> Default Value Not applicable Errors and Events None Dependencies None Examples :SOUR:ZONE:PAR:KXT 0.0 Command: :SOUR:ZONE:PAR:KXT? Query: Response: Related Commands :SOURce:ZONE:TRESet 3- 28 AWVG1 Wideband Video Generator User Manual...

  • Page 73: Source:zone:kxy(?)

    :SOURce:ZONE:KXY <numeric_value> :SOURce:ZONE:KXY? Parameters Command Query response <numeric_value> = <NRf> <NR2> Default Value Not applicable Errors and Events None Dependencies None Examples :SOUR:ZONE:PAR:KXY 0.02 Command: :SOUR:ZONE:PAR:KXY? Query: 0.02 Response: Related Commands None 3- 29 AWVG1 Wideband Video Generator User Manual...

  • Page 74: Source:zone:ky(?)

    :SOURce:ZONE:KY? Parameters Command Query response <numeric_value> = <NRf> <NR2> Default Value Not applicable Errors and Events None Dependencies None Examples :SOUR:ZONE:KY - -75 Command: :SOUR:ZONE:KY? Query: - -75.0 Response: Related Commands :SOURce:ZONE:KY2 3- 30 AWVG1 Wideband Video Generator User Manual...

  • Page 75: Source:zone:ky2(?)

    :SOURce:ZONE:KY2? Parameters Command Query response <numeric_value> = <NRf> <NR2> Default Value Not applicable Errors and Events None Dependencies None Examples :SOUR:ZONE:KY2 - -35 Command: :SOUR:ZONE:KY2? Query: - -35.0 Response: Related Commands :SOURce:ZONE:KY 3- 31 AWVG1 Wideband Video Generator User Manual...

  • Page 76: Source:zone:kyt(?)

    :SOURce:ZONE:KYT <numeric_value> :SOURce:ZONE:KYT? Parameters Command Query response <numeric_value> = <NRf> <NR2> Default Value Not applicable Errors and Events None Dependencies None Examples :SOUR:ZONE:KYT 0.00 Command: :SOUR:ZONE:KYT? Query: 0.00 Response: Related Commands :SOURce:ZONE:TRESet 3- 32 AWVG1 Wideband Video Generator User Manual...

  • Page 77: Source:zone:kt(?)

    Parameters Command Query response <numeric_value> = <NRf> <NR2> Default Value Not applicable Errors and Events None Dependencies None Examples :SOUR:ZONE:KT - -0.1 Command: :SOUR:ZONE:KT? Query: - -0.1 Response: Related Commands :SOURce:ZONE:KT2 :SOURce:ZONE:TRESet 3- 33 AWVG1 Wideband Video Generator User Manual...

  • Page 78: Source:zone:kt2(?)

    Parameters Command Query response <numeric_value> = <NRf> <NR2> Default Value Not applicable Errors and Events None Dependencies None Examples :SOUR:ZONE:KT2 - -0.24 Command: :SOUR:ZONE:KT2? Query: - -0.24 Response: Related Commands :SOURce:ZONE:KT :SOURce:ZONE:TRESet 3- 34 AWVG1 Wideband Video Generator User Manual...

  • Page 79: Source:zone:treset:state(?)

    :SOURce:ZONE:TRESet:STATe? Parameters Command Query response <Boolean> = <NRf> <NR2> Default Value Not applicable Errors and Events None Dependencies None Examples :SOUR:ZONE:TRES:STAT ON Command: :SOUR:ZONE:TRES:STAT? Query: Response: Related Commands :SOURce:ZONE:KT :SOURce:ZONE:KT2 :SOURce:ZONE:KXT :SOURce:ZONE:KYT 3- 35 AWVG1 Wideband Video Generator User Manual...
  • Page 80 SOURce Subsystem 3- 36 AWVG1 Wideband Video Generator User Manual...

  • Page 81: Appendices

    Appendices...

  • Page 83: Appendix A: Specification

    Appendix A: Specification This section contains the specifications and certifications for the AWVG1 Wideband Video Generator module. All specifications listed here are guaranteed unless labeled “typical” in the Characteristics column. Typical specifications are provided for your convenience, but are not guaranteed.

  • Page 84: Table A- 2: Awvg1 Generator Module Switcher Input

    Appendix A: Specification Table A- 1: AWVG1 Generator module outputs (cont.) Characteristics Description ≤2 mV peak Synchronous noise, typical ≥35 dB to 30 MHz (75 Ω) Return Loss/Output Impedance Table A- 2: AWVG1 Generator module switcher input Characteristics Description ≤ 1% (output 1 relative to input)

  • Page 85: Certifications

    May not meet the intent of the directive if used with other products. FCC Compliance Emissions comply with FCC Code of Federal Regulations 47, Part 15, Subpart B, Class A Limits A- 3 AWVG1 Wideband Video Generator User Manual...
  • Page 86 Appendix A: Specification A- 4 AWVG1 Wideband Video Generator User Manual...

  • Page 87: Appendix B: Scpi Conformance Information

    Appendix B: SCPI Conformance Information All commands in the AWVG1 Generator module are based on SCPI Version 1994.0. Table B- -1 lists all commands supported by this module in the OUTPut, SENSe, and SOURce command groups. The columns at right show whether or not a command is defined in the SCPI 1994.0 Standard.
  • Page 88 Appendix B: SCPI Conformance Information B- 2 AWVG1 Wideband Video Generator User Manual...

  • Page 89: Appendix C: Zone Plates

    Appendix C: Zone Plates This appendix provides reference information about zone plate patterns. Refer to the Operating Basics section of the manual for instructions on using the AWVG1 Generator module to generate zone plate signals. Zone Plate Patterns Zone plate video test patterns are called zone plates because the classical circular pattern looks like an optical zone plate (which uses the principles of Fresnel diffraction to focus and intensify light).

  • Page 90: Zone Plate Parameters

    H. Sweep Frequency Vert. Frequency V. Sweep Frequency Each standard zone plate signal has a pattern control parameter. The AWVG1 Generator module generates six standard zone plate signals; circle frequency, diagonal frequency, horizontal frequency, horizontal sweep frequency, vertical frequency, and vertical sweep frequency. The standard zone plate signals are discussed in more detail on page C- -9.

  • Page 91: Figure C- 2: Zone Plate Parameters Window

    In standards that use a 72.0 MHz clock, for example, the maximum value of K will correspond to a sine frequency of 36.0 MHz. The Horizontal Sine zone plate signal is a K -only zone plate (see Figure C- -3). C- 3 AWVG1 Wideband Video Generator User Manual...

  • Page 92: Figure C- 3: A Kx-Only Zone Plate

    × K – aspect where R is the aspect ratio (width/height) of the active video standard. aspect The Horizontal Sweep zone plate signal is a K -only zone plate (see Figure C- -4). C- 4 AWVG1 Wideband Video Generator User Manual...

  • Page 93: Kxy Parameter

    90° clockwise). To see the effects of this parameter, set it to a low number and adjust a waveform monitor to view one or two fields of the AWVG1 Generator module output. The variation in the DC voltage level from line to line will give...

  • Page 94: Ky2 Parameter

    To center the DC point at mid-screen, set K to - -2 times K The Vertical Sweep zone plate signal is a K -only zone plate (see Figure C- -6). Figure C- 6: A KY2-only zone plate C- 6 AWVG1 Wideband Video Generator User Manual...

  • Page 95: Kt Parameter

    To see the picture effects of this parameter, select any of the standard zone plates and vary K . The K coefficient can be positive or negative; the sign will determine the direction of the pattern’s motion. C- 7 AWVG1 Wideband Video Generator User Manual...

  • Page 96: Kt2 Parameter

    – × K aspect where R is the aspect ratio (width/height) of the active video standard. aspect Figure C- 7: A Circular zone plate C- 8 AWVG1 Wideband Video Generator User Manual...

  • Page 97: Standard Zone Plate Signals

    Appendix C: Zone Plates Standard Zone Plate Signals The following standard zoneplate signals are generated by the AWVG1 Generator module: Circle (Bullseye) The circle frequency is actually the equivalent of the maximum vertical sinusoid frequency at the very top and bottom of the screen (see the discussion of the K parameter earlier in this section).
  • Page 98 Appendix C: Zone Plates C- 10 AWVG1 Wideband Video Generator User Manual...
  • Page 99 WARNING The following servicing instructions are for use only by qualified personnel. To avoid injury, do not perform any servicing other than that stated in the operating instructions unless you are qualified to do so. Refer to all safety summaries before performing any service.

  • Page 101: Appendix D: Installation

    7. Avoid handling modules in areas that have a floor or work-surface covering capable of generating a static charge. 8. Do not remove the module circuit board assembly from the shield. The shield provides important support and protection for the surface-mount components. D- 1 AWVG1 Wideband Video Generator User Manual...

  • Page 102: Module Installation

    GP1 GPIB Interface module Slot 10 Power GPIB DVG1 Clock AGL1 Supply Module Module Module Module AVG1 AWVG1 Module Module Module Module Figure D- 1: TG 2000 Platform mainframe rear panel, showing slot numbering D- 2 AWVG1 Wideband Video Generator User Manual...

  • Page 103: Figure D- 2: Top Cover Removal

    4. Refer to Figure D- -2 and remove or loosen all screws to remove the top cover. Top cover Loosen screws (12) Top cover Remove screws (23) Figure D- 2: Top cover removal D- 3 AWVG1 Wideband Video Generator User Manual...

  • Page 104: Figure D- 3: Rear Panel Removal

    6. While ensuring correct alignment of the module flange as shown in Figure D- -4, lower the module into the desired slot as shown in Figure D- -5. Flange Figure D- 4: Module flange D- 4 AWVG1 Wideband Video Generator User Manual...

  • Page 105: Figure D- 5: Module Installation

    8. Press down evenly on the module until it is firmly in place. 9. Refer to Figure D- -6 and insert and tighten the top screw, which comes with your module, and tighten the rear panel screw. D- 5 AWVG1 Wideband Video Generator User Manual...

  • Page 106: Signal Set Installation

    (If you have another AWVG1 Generator module already installed in the platform, the new module you install can share its signal sets, and you do not need to install them again.)
  • Page 107 5. Move the cursor to the .DNL you want to load and push the Select button. 6. Move the browse ring to a particular test signal and push the Select button. 7. Touch Quit/Load. The previous menu appears. 8. Touch Quit/Load again. The Add Signals window reappears. D- 7 AWVG1 Wideband Video Generator User Manual...

  • Page 108: Signal Backup And Module Removal

    1. Insert a DOS formatted disk into the platform’s disk drive. 2. Push the Disk button and touch Save Signals to Disk. 3. Touch Select Source and select the AWVG1. Use the cursor arrows to select the AWVG1 module in the signals column.
  • Page 109 TG 2000 Platform mainframe accessories kit. 9. Tighten the screws on the blank rear panel. 10. Reinstall the top cover and insert and tighten all top cover screws. 11. Plug in the instrument power cord. D- 9 AWVG1 Wideband Video Generator User Manual...
  • Page 110 Appendix D: Installation D- 10 AWVG1 Wideband Video Generator User Manual...
  • Page 111 Glossary and Index...
  • Page 113 These are the three color components generated by the camera and used by the picture monitor to produce a picture. Icon A graphic symbol that represents a selection on a display screen. Glossary- 1 AWVG1 Wideband Video Generator User Manual...
  • Page 114 75 Ω system, a 75 Ω terminator must be placed at the end of the signal path. Abbreviation for luminance. Zone Plate Signal A signal composed of vertical and/or horizontal patterns that may be dynamic (temporally changing or swept in frequency). Used for testing complex processing technologies. Glossary- 2 AWVG1 Wideband Video Generator User Manual...
  • Page 115 Module parameters, 2- - 16 Set video parameters, 2- - 10 Module timing, 2- - 17 Set zone plate parameters, 2- - 13 Modules window, 2- - 4 Signal information, 2- - 9 Index- 1 AWVG1 Wideband Video Generator User Manual...
  • Page 116 C- - 9 Modules, 2- - 4 T reset parameter, 3- - 35 Signal information, 2- - 9 vertical sine, C- - 9 Signal sets, 2- - 5 vertical sweep, C- - 9 Index- 2 AWVG1 Wideband Video Generator User Manual...

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