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FM Transmitters
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Measurement Procedure:
1 Connect the Transmitter as shown.
CAUTION: The RF present at the Test Set RF IN/OUT connector must not exceed 60W
continuous (or 100 Watts for 10 sec/minute).
On the Test Set:
2 Press the PRESET key.
3 Press the TX key.
On the Radio:
4 Key the Transmitter and keep keyed until the remaining steps are complet-
ed.
On the Test Set using the knob and data entry keys:
5 Set Filter 2 to 300 Hz LPF.
On the Test Set Tone frequency deviation is displayed as FM Deviation as
shown.
On the Test Set Tone frequency is displayed as AF Freq.
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
Tone Frequency
145.890058
0.587 0.10354
0.980
Tone Deviation