Transmitter Alignment; Output Power; Operating Frequency; Modulation Level - Yaesu FTM-2001 Operating Manual

II. T R A N S M IT T E R
Set up the test equipment as shown at the right.
A . Output Power
1. Set the transceiver to channel 89, and set
the LOW power switch to the undepressed
position.
2. Adjust TC201 on the Mother Board for
peak output power on the Wattmeter (at
least 5W with less than 1.6A supply cur­
rent).
3. Adjust VR204 on the Mother Board for
5.0W output.
4. Depress the
adjust VR101 on the Control Unit for 1.0
watts output.
5. Return the LOW power switch to the high
(undepressed) position, and confirm 4.5
watts output or better on channels 120
and 159.
2 0 3
VR
2 04
VR
2 0 1
T C
4 0 1
T C
1 0 1
V R
LOW power switch and
TRANSMITTER SECTION ALIGNMENT POINTS
B. Operating Frequency
1. Set the transceiver to channel 120 and
adjust TC401 on the P L L Unit, if neces-
sary, so the frequency
155.5000 MHz ±100 Hz.
C. Modulation Level
1. Set the transceiver to channel 120, and set
the A F generator for 25mV injection at 1
kHz.
2. Press the P T T switcji and adjust VR203 on
the Mother Board for ±4.2 kHz déviation
on the Deviation meter.
3. Reduce the A F generator level to 1.2mV (-
56dBm) and confirm at least ±3.0 kHz
déviation.
counter reads