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S:\Hp8960\E1960A GSM Mobile Test Application\A.04 Release\Reference_Manual\Chapters\prog_iq_proc.fm
Programming an I/Q Tuning Measurement
Programming an I/Q Tuning Measurement
This section provides an example of how to make an I/Q Tuning measurement via the GPIB.
1. Ensure that the mobile is in test mode and is transmitting all 1s or all 0s.
2. Ensure that the expected frequency, expected power level and trigger are appropriately set.
3. Configure the I/Q Tuning measurement parameters using the SETup subsystem.
4. Start the I/Q Tuning measurement using the INITiate subsystem.
5. Use the INITiate:DONE? command to determine if I/Q Tuning measurement results are available.
6. Use the FETCh? command to obtain I/Q Tuning measurement results.
Program Example
The following program shows how to make an I/Q Tuning measurement on a normal GSM TCH burst. If you
want to test a CW signal all you need to change in this program is the trigger type, which should be set to
Immediate, rather than RF Rise.
10 PRINT “Ensure your mobile is transmitting:” !On-screen prompts.
20 PRINT “-all 1s or all 0s.”
30 PRINT “-on ARFCN 30.”
40 PRINT “-a power level of 10 dBm.”
50 PRINT “ “
60 PRINT “Press any key to continue.”
70 LOOP
80 ON KBD GOTO Key_exit
90 END LOOP
100 Key_exit: !
110 OUTPUT 714;”RFANALYZER:MANUAL:CHANNEL:SELECTED 30” !Configures the
120 !test set to expect a transmission on ARFCN 30.
130 OUTPUT 714;”RFANALYZER:EXPECTED:POWER:SELECTED 10 DBM” !Configures
140 !the test set to expect a power level of 10 dBm.
150 OUTPUT 714;”SETUP:IQTUNING:CONTINUOUS OFF” !Configures trigger
160 !mode to single for an I/Q Tuning measurement.
170 OUTPUT 714;”SETUP:IQTUNING:COUNT:SNUMBER 50” !Configures the
180 OUTPUT 714;”SETUP:IQTUNING:SPUR:STATE ON” !Configures spur on.
190 OUTPUT 714;”SETUP:IQTUNING:SPUR:FREQUENCY 10MHZ” !Configures a
200 !power measurement at 10MHz from the carrier.
210 !multi_measurement state to ON with a measurement count value
220 !of 50.
230 OUTPUT 714;”SETUP:IQTUNING:TRIGGER:SOURCE RISE” !Configures the
240 !trigger source to RF RISE.
250 OUTPUT 714;”SETUP:IQTUNING:REFERENCE:FREQUENCY AUTO” !Sets the
260 !set to choose which offset frequency is to be used as the ref.
270 OUTPUT 714;”INITIATE:IQTUNING” !Start I/Q Tuning measurement.
280 REPEAT
290 OUTPUT 714;”INITIATE:DONE?”!Check to see if I/Q Tuning
300 !measurement complete.
310 ENTER 714;Meas_complete$
Summary of Contents for 8960 Series 10
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