2-43
Making Measurements
Advanced Features
NOTE
The GPIB requires the use of base 10 values, 432h = 1074d, for example:
SERV:LATCH:VAL 1074.
The value entered is relative to the beginning of the zero bit of the zero
slot on the downlink baseband.
A 4.7 bit modulator delay occurs between the baseband and the RF
domain which must also be taken into account. Since the value may
only be integer, round to the nearest whole value.
The following timing error is introduced due to 156/157 bit timing.
Timeslot=0,4 No Error
Timeslot=1,5 +.75 bit error (early trigger)
Timeslot=2,6 +.50 bit error
Timeslot=3,7 +.25 bit error
2
Use MEAS_TRIG_OUT on the rear panel SYSTEM_BUS connector.
This is the delayed trigger from the Measurement System. In the normal
ACTIVATED operation, the Protocol Processor sends triggers to the
Measurement System on the zero bit of each downlink TCH burst. The
Measurement System applies the ‘Meas Trig’ ‘Trigger Delay’ to this input and
then, after the elapsed time, begins making its measurement. After this elapsed
time, the Measurement System also sends a trigger transition to the
MEAS_TRIG_OUT signal on the rear panel SYSTEM_BUS connector.
The trigger is only generated when a measurement is being made. This signal
may be used to trigger an externally connected measurement device such as the
HP/Agilent 71150/250 GSM high performance spectrum analyzers.
Содержание 8922M
Страница 8: ...Contents Contents 6...
Страница 21: ...1 1 1 Installing Your Agilent 8922M S...
Страница 24: ...1 4 Installing Your Agilent 8922M S Fuses and Power Cords Power Cords Agilent Part Agilent...
Страница 29: ...2 1 2 Making Measurements...
Страница 59: ...2 31 Making Measurements If You Have Problems with a Measurement Figure 2 16...
Страница 61: ...2 33 Making Measurements If You Have Problems with a Measurement Trigger Range For Pulsed RF...
Страница 75: ...2 47 Making Measurements Advanced Features...
Страница 76: ...3 1 3 Verifying Performance...
Страница 106: ...3 31 Verifying Performance Agilent Technologies 8922M S Specifications...
Страница 224: ...4 118 Screens Service Service This screen is documented in the service documentation To escape press PREV...
Страница 235: ...4 129 Screens Tests Tests Instrument BASIC Refer to chapter 8 Instrument BASIC for information about the Tests Screen...
Страница 236: ...4 130 Screens Tests...
Страница 237: ...5 1 5 Keys...
Страница 238: ...5 2 Keys Key Map Key Map...
Страница 275: ...6 27 Connectors Timing Diagrams Timing Diagrams Figure 6 2 Digital Demodulation Timing Specification Table...
Страница 276: ...6 28 Connectors Timing Diagrams Figure 6 3 Digital Demod Timing Diagram...
Страница 277: ...6 29 Connectors Timing Diagrams Figure 6 4 Frequency Hop Timing Specification Table...
Страница 278: ...6 30 Connectors Timing Diagrams Figure 6 5 RF Generator Hop Address Source Ext Timing Diagram...
Страница 279: ...6 31 Connectors Timing Diagrams Figure 6 6 RF Analyzer Hop Address Source Ext Timing Diagram...
Страница 280: ...6 32 Connectors Timing Diagrams Figure 6 7 RF Generator Hop Address Source Int Timing Diagram...
Страница 281: ...6 33 Connectors Timing Diagrams Figure 6 8 RF Analyzer Hop Address Int Timing Diagram...
Страница 282: ...6 34 Connectors Timing Diagrams Figure 6 9 Reset Hop Once Address Source Int Timing Diagram...
Страница 283: ...6 35 Connectors Timing Diagrams Figure 6 10 Reset and Hold Hop Address Source Int Timing Diagram...
Страница 284: ...6 36 Connectors Timing Diagrams Figure 6 11 Hop Inhibit Address Source Int Timing Diagram...
Страница 297: ...8 1 8 Instrument BASIC...
Страница 341: ...A 1 A APPENDIX A...
Страница 364: ...A 24 APPENDIX A Protocol Log of a Typical Call...
Страница 365: ...B 1 B Glossary...
Страница 370: ...B 6 Glossary...
