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FM Transmitters
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8. Determine if actual frequency readout or frequency error is the desired
measurement.
❒ For actual frequency readout, continue with step 9
❒ For frequency error:
•Set Tune Mode to Manual.
•Set Tune Freq to the expected carrier frequency.
On the Radio:
9 Key the Transmitter.
As long as the Transmitter is keyed the measurement results will display.
Frequency
Output
Power
TX TEST
TX Freq Error
kHz
MHz
0.169 3.579
Fre-
quency
Modulat-
ing Fre-
Tune Mode
To Screen
TX TEST
FM Deviation
Auto/Manual
TX Frequency
TX Power
Tune Freq
145.280000
MHz
IF Filter
15 kHz
Input Port
RF in/Ant
AF Anl In
FM Demod
Filter 1
300Hz HPF
Filter 2
3kHz LPF
De-Emphasis
750 us/Off
Detector
Pk+-Max
Ext TX Key
On/Off
TX Pwr Zero
Zero
AFGen1 Lvl
-45.5
dBm
AF Freq
RF GEN
RF ANL
AF ANL
SCOPE
SPEC ANL
ENCODER
DECODER
RADIO INT
More
AFGen1 Freq
1.0000
MHz
kHz
kHz
W
kHz
145.280024
2.03 1.00004
3.579
Fre-
quency