Yaesu VX-120 Technical Supplement page 12

Alignment
CTCSS TX Deviation
1. Tune the frequency to 146.050 MHz, then activate the
CTCSS encoder with a "100 Hz" tone, and set the trans-
mit power level to "LOW."
2. Press the [ F/W ] key, then press the [ MR ( SKIP )] key to
set the alignment parameter to "A5 CTC.xxx."
3. With in five second of appearing the "A5 CTC.xxx" on
the display, press the PTT switch to activate the trans-
mitter (with no microphone input), adjust the DIAL
knob so that the deviation meter reading is 0.7 kHz
(±0.05 kHz).
S-meter Sensitivity
1. Tune the frequency to 146.050 MHz.
2. Inject a 146.050 MHz signal at a level of –5 dBµV (with
1 kHz modulation @±3.5 kHz deviation) from the RF
signal generator.
3. Press the [ F/W ] key, then press the [ MR ( SKIP )] key to
set the alignment parameter to "A6 SM U D."
4. With in five second of appearing the "A6 SM U D" on
the display, press the [ ( MHz )] key.
5. Increase the RF signal generator output level to +23
dBµV.
6. Press the [ F/W ] key to recall the alignment parameter
to "A6 SM U D."
7. With in five second of appearing the "A6 SM U D" on
the display, press the [ ( MHz )] key.
Squelch Sensitivity
1. Tune the frequency to 146.050 MHz.
2. Inject a 146.050 MHz signal at a level of –12 dBµV (with
1 kHz modulation @±3.5 kHz deviation) from the RF
signal generator.
3. Press the [ F/W ] key, then press the [ MR ( SKIP )] key to
set the alignment parameter to "A7 SQL U D."
4. With in five second of appearing the "A7 SQL U D" on
the display, press the [ ( MHz )] key.
5. Increase the RF signal generator output level to –3
dBµV.
6. Press the [ F/W ] key to recall the alignment parameter
to "A7 SQL U D."
7. With in five second of appearing the "A7 SQL U D" on
the display, press the [ ( MHz )] key.
DC Voltmeter
1. Set the power supply voltage to 9.9 V.
2. Press the [ F/W ] key, then press the [ MR ( SKIP )] key to
set the alignment parameter to "A8 BAT RV."
3. With in five second of appearing the "A8 BAT RV" on
the display, press the [ REV ( HOME )] key.
To close the alignment mote
off by rotating the VOL knob fully counter clockwise. The next
time the transceiver is turned on, normal operation may resume.
, just turn the power