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S:\Hp8960\E1960A GSM Mobile Test Application\A.04 Release\Reference_Manual\Chapters\prog_orfs_proc.fm
Programming an Output RF Spectrum Measurement
Programming an Output RF Spectrum Measurement
This section provides an example of how to make the output RF spectrum (ORFS) measurement via GPIB.
The following procedure assumes that an active link is established between the test set and the mobile station.
See
“Establishing an Active Link with the Mobile Station” on page 28
.
1. Configure the ORFS measurement parameters using the SETup subsystem.
2. Start the ORFS measurement using the INITiate subsystem.
3. Use the INITiate:DONE? command to find out if ORFS measurement results are available.
4. Use the FETCh? command to obtain ORFS Power measurement results.
Example Program
10 OUTPUT 714;”SETUP:ORFSPECTRUM:CONTINUOUS OFF” !Configures a ORFS measurement
20 !to single trigger mode.
30 OUTPUT 714;”SETUP:ORFSPECTRUM:COUNT:STATE ON” !Configures a multi-measurement
40 !state to on.
50 OUTPUT 714;”SETUP:ORFSPECTRUM:TRIGGER:SOURCE AUTO” !Configure trigger source
60 !to auto.
70 OUTPUT 714;”SETUP:ORFSPECTRUM:SWITCHING:COUNT:NUMBER 50” !Configures ORFS due
80 !to switching
90 !multi-measurement
100 !count.
110 OUTPUT 714;”SETUP:ORFSPECTRUM:SWITCHING:FREQUENCY 200KHZ,400KHZ” !Configure
120 !switching
130 !offsets.
140 OUTPUT 714;”SETUP:ORFSPECTRUM:MODULATION:COUNT:NUMBER 100” !Configure ORFS
150 !due to modulation
160 !multi-measurement
170 !count.
180 OUTPUT 714;”SETUP:ORFSPECTRUM:MODULATION:FREQUENCY 200KHZ” !Configure
190 !modulation offset.
200 OUTPUT 714;”INITIATE:ORFSPECTRUM” !Start ORFS measurement.
210 REPEAT
220 OUTPUT 714;”INITIATE:DONE?” !Check to see if ORFS measurement is done.
230 ENTER 714;Meas_complete$
240 UNTIL Meas_complete$=”ORFS” !”ORFS” must be all upper case.
250 OUTPUT 714;”FETCH:ORFSPECTRUM:ALL?” !Fetch ORFS results.
260 ENTER 714;Integrity,Tx_pwr,Max_swit_200,Max_swit_400,Bw_pwr,Avg_mod_200
270 END
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