Yaesu VX-7R - TECHNICAL Service Manual page 15

High TX Power Adjustment (L3 POWER)
Transmit, and adjust the output power level for 2.5 W
m
(±0.2 W) by rotating the DIAL, then press the V/M but-
ton. Rotate the DIAL to select the next setting.
High TX Power Adjustment (L2 POWER)
Transmit, and adjust the output power level for 1.0 W
m
(±0.1 W) by rotating the DIAL, then press the V/M but-
ton. Rotate the DIAL to select the next setting.
High TX Power Adjustment (L1 POWER)
Transmit, and adjust the output power level for 50 mW
m
(+50/-30 mW) by rotating the DIAL, then press the V/M
button. Rotate the DIAL to select the next setting.
TX Deviation Adjustment (MAX DEV)
Inject a 1 kHz audio tone at a level of 50mV (rms) to
m
the MIC jack. Press the V/M button, then transmit and
adjust the deviation for 4.5 kHz (±0.2 kHz) (USA Ver-
sion: 4.2 kHz (±0.2 kHz)) by rotating the DIAL, then
press the V/M button. Rotate the DIAL to select the next
setting.
AM Modulation (AM MOD)
Inject a 1 kHz audio tone at a level of 100mV (rms) to
m
the MIC jack. Press the V/M button, then transmit and
adjust the modulation for 60% (±10%) by rotating the
DIAL.
CTCSS Tx Deviation Adjustment (TN 67.0)
Press the V/M button, then transmit and adjust the de-
m
viation for 0.5 kHz (+0.05/-0.1 kHz) by rotating the
DIAL, then press the V/M button. Rotate the DIAL to
select the next setting.
CTCSS Tx Deviation Adjustment (TN 183.5)
Press the V/M button, then transmit and adjust the de-
m
viation for 0.5 kHz (±0.1 kHz) by rotating the DIAL,
then press the V/M button. Rotate the DIAL to select
the next setting.
CTCSS Tx Deviation Adjustment (TN 254.1)
Press the V/M button, then transmit and adjust the de-
m
viation for 0.5 kHz (±0.1 kHz) by rotating the DIAL,
then press the V/M button. Rotate the DIAL to select
the next setting.
DCS Tx Deviation Adjustment (DCS DEV)
Press the V/M button, then transmit and adjust the de-
m
viation for 0.6 kHz (±0.1 kHz) by rotating the DIAL,
then press the V/M button. Rotate the DIAL to select
the next setting.
Press the BAND button to activate the 145 MHz band
internal alignment routine.
The alignment frequency will automatically be set to
145.100 MHz (USA Version: 146.100 MHz).
144 MHz Band Alignment
Squelch Hysteresis Adjustment (HIS SQL)
Rotate the DIAL for minimum squelch hysteresis. Press
m
the V/M button, then rotate the DIAL to select the next
setting.
Squelch Preset Threshold (THLD SQL)
Inject a –15.0 dBµ RF signal (1 kHz tone @ ±3.5 kHz
m
deviation), then press the V/M button, then press the
MON/F button twice. Press the V/M button, then rotate
the DIAL to select the next setting.
Squelch Preset Tight (TIGH SQL)
Adjust the generator level to –4.0 dBµ, then press the
m
V/M button, then press the MON/F button twice. Press
the V/M button, then rotate the DIAL to select the next
setting.
S-Meter S-1 Adjustment (S1 LEVEL)
Adjust the generator level to –7.0 dBµ (1 kHz tone @
m
±3.5 kHz deviation), then press the V/M button, then
press the MON/F button twice. Press the V/M button,
then rotate the DIAL to select the next setting.
S-Meter Full-Scale Adjustment (S9 LEVEL)
Adjust the generator level to +19 dBµ (1 kHz tone @
m
±3.5 kHz deviation), then press the V/M button, then
press the MON/F button twice. Press the V/M button,
then rotate the DIAL to select the next setting.
Wide-FM S-Meter S-1 Adjustment (S1 LEVEL)
m Adjust the generator level to 0 dBµ (1 kHz tone @ ±20
kHz deviation), then press the V/M button, then press
the MON/F button twice. Press the V/M button, then
rotate the DIAL to select the next setting.
Wide-FM S-Meter Full-Scale Adjustment (S9 LEVEL)
Adjust the generator level to +20 dBµ (1 kHz tone @
m
±20 kHz deviation), then press the V/M button, then
press the MON/F button twice. Press the V/M button,
then rotate the DIAL to select the next setting.
The alignment frequency will now be automatically set
to 144.000 MHz.
Alignment
15