Operation Model
8901B
29.0 SPCL (SINAD)
30.0
SPCL (Ext. Audio RMS Level)
33.0
SPCL (LO Frequency)
Effects on Modulation Output/Audio Input During Measurements
Measurements have a direct effect on MODULATION OUTPUT/AUDIO
INPUT.
The following
table lists the functioning of the
MODULATION
OUTPUT/AUDIO
INPUT
for each measurement.
(Measurements not listed have no effect.)
Selects the last-selected modulation measurement.
Selects the AUDIO INPUT.
Selects the last-selected modulation measurement.
Modulation Analyzer’s Response
I
Measurement
I
34.0
SPCL (IF Frequency)
35.0
SPCL (RF Level)
I
AM
Selects the last-selected modulation measurement.
Blanks output; turns off all Modulation Output, Audio is Audio Input keylights.
1
1
Selects the demodulated AM signal (unless AUDIO INPUT is selected).
AUDIO DISTN
on AUDIO INPUT key selection).
1
AUTOMATIC OPERATION
I
I
Selects the last-selected modualtion measurement.
FM
FREQ
FREQ ERROR
INSTR PRESET
w
RF POWER
I
TUNED RF LEVEL
Selects the demodulated FM signal (unless AUDIO INPUT is selected).
Selects the last-selected modualtion measurement.
Selects the last-selected modualtion measurement.
Refer to instrument Preset.
Selects the demodulated FM signal (unless AUDIO INPUT
is
selected).
Blanks output; turns
off
all Modulation Output, Audio Input keylights.
Blanks output: turns off all Modulation Output, Audio Input keylights.
3-188
Modulation Output/Audio
Input
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