Yaesu VX-7R - TECHNICAL Service Manual page 18

Alignment
Press the SUB button to activate the SUB band inter-
nal alignment routine.
The alignment frequency will automatically be set to
435.100 MHz (USA Version: 440.100 MHz) on the SUB
band.
SUB Band Alignment
430 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 –13.0 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 V/M
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 +20 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.
Press the BAND button to activate the 50 MHz SUB
band internal alignment routine.
The alignment frequency will automatically be set to
52.100 MHz.
50 MHz SUB 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 –13.0 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.
18
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.
Press the BAND button to activate the 144 MHz SUB band
internal alignment routine.
The alignment frequency will automatically be set to
145.100 MHz (USA Version: 146.100 MHz).
144 MHz SUB Band Alignment
Squelch Hysteresis Adjustment (HIS SQL)
Rotate the DIAL for minimum squelch hysteresis. Press the
m
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 V/M
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
presses the MON/F button twice. Press the V/M button.
This completes the internal alignment routine for all
bands. To save all settings and exit, press the HM/RV
button.