Download Agilent Technologies 8922M User`s guide

GPIB Tutorial and Examples
Program 2
2710
GOTO Timeflag
!If wait too long,
goto timeout code
2720
END IF
2730 !
2740
!===================================================================================
2750 !
2760
Clock(1)=TIMEDATE-Clock(1)
!End call set up timer
2770
Clock(2)=TIMEDATE
!Start measurement timer
2780 !
2790
!===================================================================================
2800 !
2810 !UNCOUPLE Agilent 8922M/S RF ANALYZER FROM GSM BASE STATION EMULATOR
2820 !
2830
OUTPUT Uut;”CELL:MS:TADV:MODE ‘manual’”
!Fix timing advance
at 0 so 8922 doesn’t auto adjust
2840
OUTPUT Uut;”TRIG:DDEM:AST ‘disarm’”
!Disable the uplink
demodulator
2850
OUTPUT Uut;”HOPC:RFAN:AST ‘disarm’”
!Stop the RF Analyzer
from hopping
2860
OUTPUT Uut;”HOPC:RFAN:MODE ‘non-hop’”
2870
OUTPUT Uut;”TRIG:SOUR ‘rf rise’”
!Trigger measurements
from RF rise, when the
2880
OUTPUT Uut;”TRIG:DEL 0”
!signal falls within
the IF bandwidth
2890 !
2900
!===================================================================================
2910 !
2920 !PERFORM DSP MEASUREMENTS
2930 !
2940
OUTPUT Uut;”DISP DSP”
!Return to the DSP
amplitude main screen
2950
FOR Txcount=1 TO Numdsppwr
!Outer loop for Tx
levels
2960
Txlev=Dsppwr(Txcount)
!Get Tx level from array
2970
OUTPUT Uut;”CELL:MS:TLEV”;Txlev
!Program mobile’s Tx
level
2980
Txlevchange$=”true”
2990
FOR Arcount=1 TO Numdsparfcn
!Inner loop for ARFCN
3000
Arfcn=Dsparfcn(Arcount)
!Get ARFCN from array
3010
Freq=(890+Arfcn*.2)*1000000
!Calculate ARFCN frequency
3020
OUTPUT Uut;”RFAN:FREQ “;Freq
!Tune the RF Analyzer
to select individual ARFCN
3030
Count=0
!Establish counter
for repeat measurements
3040
REPEAT
!May need to repeat
if mobile not settled
3050
OUTPUT Uut;”TRIG:AST ‘ARM’”
!Arm the DSP measurement
3060
OUTPUT Uut;”MEASURE:DSPANALYZER:PHASE:ERROR:RMS?”
!Read all the DSP
results: rms phase error
3070
ENTER Uut;Rmspher(Arcount,Txcount)
3080 !Note: program will stick here, waiting for input if mobile fails to provide a
valid signal to trigger
3090 !
the Agilent 8922M/S. The program will timeout. The timeout code dissarms
the Agilent 8922M/S trigger.
3100
OUTPUT Uut;”MEASURE:DSPANALYZER:PHASE:ERROR:PEAK?” !
peak phase error
3110
ENTER Uut;Pkpher(Arcount,Txcount)
3120
OUTPUT Uut;”MEASURE:DSPANALYZER:PHASE:ERROR:FREQUENCY?”!
frequency error
3130
ENTER Uut;Frer(Arcount,Txcount)
3140
OUTPUT Uut;”MEASURE:DSPANALYZER:MSUM?”
!
power versus time mask
3150
ENTER Uut;Mask$(Arcount,Txcount)
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