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200
SUB Meas_hum_noise
210
OUTPUT 714;"DISP CME"
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OUTPUT 714;"AFG1:DEST 'AUDIO OUT';FREQ 1KHZ;OUTP:INCR .01V"
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OUTPUT 714;"AFG1:OUTP 50 MV"
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OUTPUT 714;"AFAN:INP 'FM DEMOD';DEMP '750 US';DET 'PK+'"
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OUTPUT 714;"AFAN:FILT1 'C MESSAGE';FILT2 '>99KHZ LP'"
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OUTPUT 714;"MEAS:AFR:SEL 'AF FREQ'"
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OUTPUT 714;"RFG:AMPL -47DBM"
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OUTPUT 714;"TRIG:MODE:RETR SINGLE;SETT FULL"
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REPEAT
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OUTPUT 714;"TRIG;:MEAS:AFR:FM?"
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ENTER 714;Deviation
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IF Deviation>8300 THEN OUTPUT 714;"AFG1:OUTPut:INCR DOWN"
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IF Deviation<7700 THEN OUTPUT 714;"AFG1:OUTPut:INCR UP"
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UNTIL Deviation>=7700 AND Deviation<=8300
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OUTPUT 714;"AFAN:DET 'RMS'"
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OUTPUT 714;"TRIG;:MEAS:AFR:FM?"
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ENTER 714;Deviation
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OUTPUT 714;"MEAS:AFR:FM:REF:STAT ON;VAL
"&VAL$(Deviation)&"HZ"
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OUTPUT 714;"AFG1:OUTPut:STAT OFF"
400
OUTPUT 714;"TRIG;:MEAS:AFR:FM?"
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ENTER 714;Deviation
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PRINT USING "K,3D.2D,K";"FM Hum and Noise = ";Deviation;" dB."
430
OUTPUT 714;"TRIG:MODE:RETR REP;SETT FULL"
440
OUTPUT 714;"MEAS:AFR:FM:REF:STAT OFF"
450
SUBEND
Chapter 8, Programming The Call Processing Subsystem
Programming The ANALOG MEAS Screen
619
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