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Chapter 3, Programming the PCS Interface using GPIB Control
Overview of Programming Issues
2. Generator level temperature compensation
This compensation is necessary to maintain the generator’s output level accuracy
which is used for testing receivers. During this procedure the UUT is automatically
internally disconnected from the generator and analyzer path. The PCS Interface’s
internal compensation factors are used to compute the generator path attenuator values
and the required signal level from the Test Set’s DUPLEX OUT port.
Before using the generator for receiver testing, the need for a new generator level
temperature compensation should be checked. The controlling software queries the
PCS Interface to determine if a temperature compensation is necessary. If the
compensation is necessary, it is performed by the controlling software with a few
GPIB commands.
Since the UUT is internally disconnected from the Test Set during generator level
compensation, it should be performed before an active traffic/voice channel link is
established if over-the-air protocol is used. Otherwise, the active call may be dropped.
NOTE:
Turn on desired modulation before the generator level temperature compensation for best
accuracy.
Содержание 83236B
Страница 7: ...vii...
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Страница 14: ...Contents 14 Error Message 154 Glossary 161...
Страница 30: ...30 Chapter 1 General Information Other Information...
Страница 123: ...123 5 S pecifications Specifications...
Страница 137: ...137 A F requency Conversion Tables Appendix A Frequency Conversion Tables...
Страница 140: ...140 Appendix A Frequency Conversion Tables Frequency Conversion for Signal Generation...
Страница 141: ...141 B M anual Changes Appendix B Manual Changes...
Страница 164: ...Index 164 TX definition 162 TX subsystem 114 TX RX port 25 typical 124 U upconverter definition 162 W warm up time 124...