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AWVG1 Wideband Video Generator User Manual

Table of Contents

General Safety Summary

vii

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Service Safety Summary

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Preface

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Contacting Tektronix

. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Getting Started

1--1

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Product Description

1--1

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Accessories

1--2

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Configuration

1--2

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Functional Check

1--3

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Operating Basics

Functional Overview

2--1

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Outputs

2--2

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Input

2--2

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Online Help

2--2

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Operating Procedures

2--3

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Equipment Hookup

2--3

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Power On and Select the Module

2--4

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Output Signal

2--5

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Enable/Disable the Module Output

2--5

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Select the Output Signal

2--6

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Active Signal Parameters

2--9

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Video Parameters

2--11

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Zone Plate Test Signal

2--14

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Module Parameters

2--17

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Timing

2--18

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Syntax and Commands

Syntax

3--1

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Programming Model

3--1

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Addressing Module Test Signals

3--1

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Command Arguments

3--1

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Argument Example

3--2

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SCPI Commands and Queries

3--3

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Functional Command Groups

3--5

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MMemory

3--5

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Output

3--5

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Sense

3--6

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Source

3--6

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OUTPut Subsystem

3--9

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Command Tree

3--9

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:OUTPut:STATe(?)

3--10

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:OUTPut:SOURce(?)

3--11

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SENSe Subsystem

3--13

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Summary of Contents for AWVG1

Page 1: ...User Manual AWVG1 Wideband Video Generator 070 9051 02 This document applies to firmware version 2 0 and above www tektronix com...

Page 2: ...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 50...

Page 3: ...tions This warranty shall not apply to any defect failure or damage caused by improper use or improper or inadequate maintenance and care Tektronix shall not be obligated to furnish service under this...

Page 4: ...you may purchase up to five years of Calibration Services Service Assurance Advantages H Priced well below the cost of a single repair or calibration H Avoid delays for service by eliminating the nee...

Page 5: ...t Hookup 2 3 Power On and Select the Module 2 4 Output Signal 2 5 Enable Disable the Module Output 2 5 Select the Output Signal 2 6 Active Signal Parameters 2 9 Video Parameters 2 11 Zone Plate Test S...

Page 6: ...SOURce ZONE KXT 3 30 SOURce ZONE KXY 3 31 SOURce ZONE KY 3 32 SOURce ZONE KY2 3 33 SOURce ZONE KYT 3 34 SOURce ZONE KT 3 35 SOURce ZONE KT2 3 36 SOURce ZONE TRESet STATe 3 37 Appendices Appendix A Sp...

Page 7: ...Contents AWVG1 Wideband Video Generator User Manual iii Hardware Installation D 2 Signal Set Installation D 6 Signal Backup and Module Removal D 8 Required Equipment D 8 Module Removal D 8 Glossary a...

Page 8: ...subsystem hierarchy 3 3 Figure C 1 Optical zone plates enlarged C 1 Figure C 2 Zone plate parameters window C 3 Figure C 3 A KX only zone plate C 4 Figure C 4 A KX2 only zone plate C 5 Figure C 5 A KY...

Page 9: ...EMory commands 3 5 Table 3 2 OUTPut commands 3 5 Table 3 3 SENSe commands 3 6 Table 3 4 SOURce commands 3 6 Table A 1 AWVG1 Generator module outputs A 1 Table A 2 AWVG1 Generator module switcher input...

Page 10: ...Table of Contents vi AWVG1 Wideband Video Generator User Manual...

Page 11: ...To avoid electric shock the grounding conductor must be connected to earth ground Before making connections to the input or output terminals of the product ensure that the product is properly grounded...

Page 12: ...uct The following symbols may appear on the product Protective Ground Earth Terminal ATTENTION Refer to Manual Double Insulated DANGER High Voltage Refer to the specifications section for a listing of...

Page 13: ...product unless another person capable of rendering first aid and resuscitation is present Disconnect Power To avoid electric shock disconnect the main power by means of the power cord or if provided...

Page 14: ...Service Safety Summary x AWVG1 Wideband Video Generator User Manual...

Page 15: ...s 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 T...

Page 16: ...merica contact your local Tektronix distributor or sales office Service support Tektronix offers a range of services including Extended Warranty Repair and Calibration services Contact your local Tekt...

Page 17: ...Getting Started...

Page 18: ......

Page 19: ...put Burst Generator Figure 1 1 Simplified block diagram of the AWVG1 Generator module The module is a single channel generator which outputs either the internally generated signal or an analog video s...

Page 20: ...stop frequencies is provided Accessories Table lists standard and optional accessories for the module Standard accessories are included with the module and optional accessories are available for purc...

Page 21: ...to the Output 1 BNC connector on the AWVG1 Generator module rear panel and terminate the monitor s loop through connector in 75 5 Terminate the AWVG1 Generator module outputs 2 and 3 in 75 This is ne...

Page 22: ...signal and check that the displayed signal changes You only need to do this on Output 1 14 Check the AWVG1 External Input as follows a Using a 75 coaxial cable connect a television test signal from a...

Page 23: ...Operating Basics...

Page 24: ......

Page 25: ...ton Touch Module Parameters Touch Active Signal Parameters Test Signals window Touch AWVG1 module Touch Module Parameters Touch Rename Module Rename Module window Enter new name for module Push Edit b...

Page 26: ...odule 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...

Page 27: ...H Active signal parameters H Module parameters Refer to Figure 2 1 on page 2 1 for information on how to access the appropri ate windows for these procedures Equipment Hookup No special test equipment...

Page 28: ...stalled module is not represented refer to 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 r...

Page 29: ...n the window shown below Check that there is an icon for each installed signal set If your signal sets are not installed refer to Signal Set Installation on page D 6 2 Touch the desired signal set on...

Page 30: ...as shown in the following example _Horizontal Sine is a user generated signal c To select a signal from the list rotate the Navigation knob to move the cursor to that signal and then press the front p...

Page 31: ...the module and signal and then push the Select button 7 If you want to use the signal on the rear panel input as the output signal touch the EXTERNAL INPUT icon to highlight it For example you can co...

Page 32: ...w 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...

Page 33: ...r User Manual 2 9 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...

Page 34: ...g steps 1 Push the Test Signals button In the Test Signals window select the 1 30 MHz Adjustable Line Sweep signal This signal has five frequency markers that you can adjust 2 Touch Active Signal Para...

Page 35: ...e frequency Touch the Marker X icon X represents the number of the currently selected marker to enable or disable the marker NOTE When two or more markers overlap only one marker will appear on the wa...

Page 36: ...layed name using the backspace key BS 12 Enter the new name Touch Set 1 or Set 2 to display additional sets of characters Touch Shift to display a lower case or upper case alphabet In the following ex...

Page 37: ...ne zone plate signals using the SDP2000 Signal Development Program Version 2 0 and up Refer to the SDP2000 online help To change the zone plate coefficients perform the following steps 1 Push the Test...

Page 38: ...e the cursor down to KX H freq Rotate the Navigation knob A popup menu will warn you that the Pattern Control Parameter will become invalid This means that the signal will change shape Touch OK to con...

Page 39: ...signal again Go back to the zone plate Parameters window and note that the Circle Frequency reappears with the five dependent parameters g Go back to the Test Signals window and select a different zo...

Page 40: ...fect 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 2 Push the Test Signals button 3 Touch Module...

Page 41: ...tor module using the Module Parameters window Changes you make to timing affect all signals for the AWVG1 Generator module To set the timing perform the following steps 1 In the Module Parameters wind...

Page 42: ...the display b Rotate the Navigation knob counter clockwise to advance the timing or clockwise to delay the timing c To enter a specific value use the keypad and then press the Select key NOTE When yo...

Page 43: ...Syntax and Commands...

Page 44: ......

Page 45: ...several modules and will be accepted without a reported error 2 Enable the module using the OUTPut STATe ON command The output state of the module must be enabled before test signal parameters can be...

Page 46: ...X parameter horizontal frequency to 5 98 cycles per active picture height c aph 4 SOURce ZONE KX2 8 5 sets the zone plate KX 2 parameter horizontal sweep to 8 5 cycles per active picture height square...

Page 47: ...e SCPI standard The SCPI language is based on a hierarchical or tree structure see Figure 3 1 that represents a subsystem The top level of the tree is the root node it is followed by one or more lower...

Page 48: ...Syntax 3 4 AWVG1 Wideband Video Generator User Manual...

Page 49: ...st signal for the module Detailed information for using these commands as well as other commands that can be used with the entire platform are located in the TG 2000 Signal Generation Platform User Ma...

Page 50: ...Set or query the frequency of the sweep end point SOURce SWEep MARKer5 FREQuency Set or query the frequency of frequency markers 1 through 5 SOURce SWEep MARKer5 STATe Set or query the state of frequ...

Page 51: ...stem 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 For more informat...

Page 52: ...set or query the state of the AWVG1 Generator module OUTPut STATe Boolean OUTPut STATe Command Query response Boolean ON or 1 OFF or 0 1 0 ON None None Command OUTP STAT ON Query OUTP STAT Response O...

Page 53: ...ponse char EXTernal INTernal EXT INT None None None Command OUTP SOUR INT Query OUTP SOUR Response INT OUTPut STATe MMEM LOAD SIGNal The MMEM LOAD SIGNal command loads a signal to the module output si...

Page 54: ...OUTPut Subsystem 3 10 AWVG1 Wideband Video Generator User Manual...

Page 55: ...f the module in relation to the rest of the TG 2000 Signal Generation Platform by correcting the module delay The BG1 Generator module is the reference A detailed description of the AWVG SENSe command...

Page 56: ...a floating point value Fractional parts are ignored Settings will be retained through power cycle SENSe CORRection MDELay VERTical numeric_value SENSe CORRection MDELay VERTical Command Query response...

Page 57: ...the horizontal time value adjust the vertical delay to accommodate the requested delay Settings will be retained through the power cycle SENSe CORRection MDELay HORizontal numeric_value SENSe CORRecti...

Page 58: ...SENSe Subsystem 3 14 AWVG1 Wideband Video Generator User Manual...

Page 59: ...cription of the AWVG1 Generator module SOURce commands follows the Command Tree Command Tree SOURce MVIDeo SYNC numeric_value BURSt numeric_value SWEep AMPLitude numeric_value FREQuency STARt numeric_...

Page 60: ...has only two values 0 00 and 100 0 percent Arguments greater than 0 00 will be adjusted to 100 0 Units are percent SOURce MVIDeo SYNC numeric_value SOURce MVIDeo SYNC Command Query response numeric_v...

Page 61: ...t level has only two values 0 00 and 100 0 percent Arguments greater than 0 00 will be adjusted to 100 0 SOURce MVIDeo BURSt numeric_value SOURce MVIDeo BURSt Command Query response numeric_value NRf...

Page 62: ...illivolts SOURce MVIDeo SWEep AMPLitude numeric_value SOURce MVIDeo SWEep AMPLitude Command Query response numeric_value NRf NR2 714 3 None The default value is based on the source file of the active...

Page 63: ...of the sweep start point Units are megahertz SOURce SWEep FREQuency STARt numeric_value SOURce SWEep FREQuency STARt Command Query response numeric_value NRf NR2 0 0 None None Command SOUR SWE FREQ ST...

Page 64: ...of the sweep end point Units are megahertz SOURce SWEep FREQuency STOP numeric_value SOURce SWEep FREQuency STOP Command Query response numeric_value NRf NR2 10 00 None None Command SOUR SWE FREQ STOP...

Page 65: ...or query the frequency of frequency markers 1 through 5 Units are megahertz SOURce SWEep MARKer5 FREQuency numeric_value SOURce SWEEP MARKer5 FREQuency Command Query response numeric_value NRf NR2 0 0...

Page 66: ...f frequency markers 1 through 5 You can use the query to determine the state of frequency markers 1 through 5 SOURce SWEep MARKer5 STATe Boolean SOURce SWEEP MARKer5 STATe Command Query response Boole...

Page 67: ...are megahertz For other zone plate signals the units are c aph cycles per average picture height SOURce ZONE FREQuency numeric_value SOURce ZONE FREQuency Command Query response numeric_value NRf NR2...

Page 68: ...umeric_value NRf NR2 Not applicable None The results of this command are based on the type of zone plate originally defined Other K factors will automatically be adjusted with this command If the depe...

Page 69: ...ery the zone plate K parameter Units are cycles SOURce ZONE K numeric_value SOURce ZONE K Command Query response numeric_value NRf NR2 Not applicable None None Command SOUR ZONE K 0 4 Query SOUR ZONE...

Page 70: ...er Units are c aph cycles per average picture height SOURce ZONE KX numeric_value SOURce ZONE KX Command Query response numeric_value NRf NR2 Not applicable None None Command SOUR ZONE PAR KX 98 6 Que...

Page 71: ...nits are c aph2 cycles per active picture height squared SOURce ZONE KX2 numeric_value SOURce ZONE KX2 Command Query response numeric_value NRf NR2 Not applicable None None Command SOUR ZONE PAR KX2 4...

Page 72: ...are c aph s cycles per active picture height per second SOURce ZONE KXT numeric_value SOURce ZONE KXT Command Query response numeric_value NRf NR2 Not applicable None None Command SOUR ZONE PAR KXT 0...

Page 73: ...er Units are c aph2 cycles per active picture height squared SOURce ZONE KXY numeric_value SOURce ZONE KXY Command Query response numeric_value NRf NR2 Not applicable None None Command SOUR ZONE PAR K...

Page 74: ...rameter Units are c aph cycles per average picture height SOURce ZONE KY numeric_value SOURce ZONE KY Command Query response numeric_value NRf NR2 Not applicable None None Command SOUR ZONE KY 75 Quer...

Page 75: ...er Units are c aph2 cycles per active picture height squared SOURce ZONE KY2 numeric_value SOURce ZONE KY2 Command Query response numeric_value NRf NR2 Not applicable None None Command SOUR ZONE KY2 3...

Page 76: ...its are c aph s cycles per active picture height per second SOURce ZONE KYT numeric_value SOURce ZONE KYT Command Query response numeric_value NRf NR2 Not applicable None None Command SOUR ZONE KYT 0...

Page 77: ...ameter Units are c s cycles per second SOURce ZONE KT numeric_value SOURce ZONE KT Command Query response numeric_value NRf NR2 Not applicable None None Command SOUR ZONE KT 0 1 Query SOUR ZONE KT Res...

Page 78: ...Units are c s2 cycles per second squared SOURce ZONE KT2 numeric_value SOURce ZONE KT2 Command Query response numeric_value NRf NR2 Not applicable None None Command SOUR ZONE KT2 0 24 Query SOUR ZONE...

Page 79: ...the zone plate signal SOURce ZONE TRESet STATe Boolean SOURce ZONE TRESet STATe Command Query response Boolean NRf NR2 Not applicable None None Command SOUR ZONE TRES STAT ON Query SOUR ZONE TRES STAT...

Page 80: ...SOURce Subsystem 3 36 AWVG1 Wideband Video Generator User Manual...

Page 81: ...Appendices...

Page 82: ......

Page 83: ...3 relative to output 1 Relative Amplitude 0 5 outputs 2 and 3 relative to output 1 Delay Errors typical Output to Output Delay 1 ns outputs 1 and 3 relative to output 2 Group Delay 3 ns to 20 MHz 5 ns...

Page 84: ...t 10 mV output 1 relative to input Luminance Linearity Error 0 5 Differential Gain 0 5 Differential Phase 0 5_ In band Signal Noise Ratio 60 dB to 6 MHz unweighted as measured on the VM700 No spurs ab...

Page 85: ...intent of Directive 89 336 EEC for Electromagnetic Compatibility when it is used with the product s stated in the specifications table Refer to the EMC specification published for the stated products...

Page 86: ...Appendix A Specification A 4 AWVG1 Wideband Video Generator User Manual...

Page 87: ...the SCPI 1994 0 Standard For information on other command groups that this module may support refer to the TG 2000 Signal Generation Platform User Manual Table B 1 SCPI 1994 0 conformance information...

Page 88: ...Appendix B SCPI Conformance Information B 2 AWVG1 Wideband Video Generator User Manual...

Page 89: ...hows two enlarged optical zone plates The white areas are transparent and the black areas are opaque The precise spacing of the rings focuses and intensifies light that passes through the plate Figure...

Page 90: ...he adjustment range of most of the coefficients depends on the characteristics sample frequency and lines per field of the active video standard TG 200 display Circle Frequency Diag Frequency Horz Fre...

Page 91: ...ve video standard For example KX 9 0 results in approximately 12 cycles per line in a standard with a 4 3 aspect ratio the same setting yields about 16 cycles per line when the ratio is 16 9 To estima...

Page 92: ...g KX 2 to 9 will result in the line waveform changing from DC to 9 c aph in the width equal to one active picture height As with KX the ending frequency depends on the aspect ratio of the active video...

Page 93: ...vertically arranged sweep signal The Field Sweep zone plate signal is a KXY only zone plate TG 2000 display KY V Freq Units c aph KY sets the initial vertical frequency of the pattern it is analogous...

Page 94: ...s to KX 2 as KY compares to KX To see the effect of KY 2 view the field on a waveform monitor With KY set to 0 0 a KY 2 coefficient of 10 results in the apparent vertical sine wave changing from DC to...

Page 95: ...e of the signal will then flip by 180 the sine wave will become negative and the frequency will increase through DC when the cycle will begin again TG 2000 display KYT T ch V freq Units c aph s The KY...

Page 96: ...enerated with equal coefficients for KX and KY In this special case the diagonal frequency is 2 times the vertical and horizontal frequencies The Circle is probably the best known zone plate pattern s...

Page 97: ...le 72 0 MHz 2 36 0 MHz For horizontal sweep frequencies up to half of the video standard s sampling frequency fs the displayed value is the maximum or swept to frequency of the sine wave For numbers g...

Page 98: ...Appendix C Zone Plates C 10 AWVG1 Wideband Video Generator User Manual...

Page 99: ...re 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...

Page 100: ......

Page 101: ...1 Wear a grounded antistatic wrist strap to discharge the static voltage from your body while installing or removing modules from the TG 2000 Platform mainframe 2 Transport and store modules in a stat...

Page 102: ...slot restrictions Figure D 1 shows a sample configuration with slot numbers Table D 1 Module slot assignments Module Slots in which the module can be installed AGL1 Genlock module Slot 2 or 3 AVG1 Gen...

Page 103: ...azard always remove the power cord before removing the top cover Failure to remove the power cord can result in serious injury or death 4 Refer to Figure D 2 and remove or loosen all screws to remove...

Page 104: ...in Figure D 3 Loosen but do not remove the bottom screw You will use it later to secure the module Loosen screw Figure D 3 Rear panel removal 6 While ensuring correct alignment of the module flange a...

Page 105: ...ting the module CAUTION The connectors must exactly match before you attempt to press the module firmly in place If the connectors do not match you could bend a pin that could damage the module mainfr...

Page 106: ...Installation procedure If this module was installed in the TG 2000 Platform mainframe at the factory signal sets are already installed If you ordered this generator module separately you must install...

Page 107: ...d Signals window shows the amount of Kbytes selected Total Tagged and the amount available on the module If the tagged total is greater than the amount available the signal set will not load 9 Touch S...

Page 108: ...ve it from the platform You will need a blank DOS formatted 3 5 inch disk Save the signal sets as follows 1 Insert a DOS formatted disk into the platform s disk drive 2 Push the Disk button and touch...

Page 109: ...top screw CAUTION The module will lose its signal memory 30 seconds after you remove it from the TG 2000 Platform mainframe Before removing the module be sure you have backed up the signals 6 Remove t...

Page 110: ...Appendix D Installation D 10 AWVG1 Wideband Video Generator User Manual...

Page 111: ...Glossary and Index...

Page 112: ......

Page 113: ...olor information in a television picture Chrominance can be further broken down into two properties of color hue and saturation Chrominance Signal The high frequency portion of the video signal obtain...

Page 114: ...ng luminance Y from the red camera signal R SCPI Standard Commands for Programmable Instruments A standard that provides guidelines for remote programming of instruments These guidelines provide a con...

Page 115: ...rating procedures 2 3 Output signal enable disable 3 8 select 2 5 source 3 9 Output signal enable 2 17 Outputs 2 2 P Pattern control parameter C 2 Power on procedure 2 4 R Rear panel connectors 2 2 Re...

Page 116: ...Module parameters 2 16 Modules 2 4 Signal information 2 9 Signal sets 2 5 Test signals 2 5 2 6 Timing 2 17 Video parameters 2 10 Zoneplate 2 14 Z Zone plate amplitude 3 24 circle C 8 C 9 combining par...

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