Low tx power adjustment, Max deviation adjustment, Ctcss tone deviation adjustment – Yaesu VX-3R Сервис-мануал User Manual

Page 14: Dcs deviation adjustment, Alignment

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14

Alignment

Low TX Power Adjustment

P

Connect the 50-Ohm Dummy Load and Wattmeter to

the ANT jack.

P

Rotate the DIAL knob one click clockwise to select the

alignment item "LP".

P

Press the [V/M] key.

P

Press the PTT switch, then rotate the DIAL knob so that

the Wattmeter reading is 0.1 W ±0.05 W.

P

Press the [V/M] key again.

MAX Deviation Adjustment

P

Connect the 50-Ohm Dummy Load, Wattmeter, and

Deviation Meter to the ANT jack.

P

Connect the AF Generator to the MIC/SP jack, and then

set the output level to 50 mV at 1 kHz.

P

Rotate the DIAL knob one click clockwise to select the

alignment item "dEV".

P

Press the [V/M] key.

P

Press the PTT switch, then rotate the DIAL knob so that

the Deviation meter reading is 4.2 kHz ±0.1 kHz.

P

Press the [V/M] key again.

CTCSS Tone Deviation Adjustment

P

Connect the 50-Ohm Dummy Load, Wattmeter, and

Deviation Meter to the ANT jack.

P

Rotate the DIAL knob one click clockwise to select the

alignment item "100".

P

Press the [V/M] key.

P

Press the PTT switch, then rotate the DIAL knob so that

the Deviation meter reading is 0.65 kHz ±0.05 kHz.

P

Press the [V/M] key again.

DCS Deviation Adjustment

P

Connect the 50-Ohm Dummy Load, Wattmeter, and

Deviation Meter to the ANT jack.

P

Rotate the DIAL knob one click clockwise to select the

alignment item "dCS".

P

Press the [V/M] key.

P

Press the PTT switch, then rotate the DIAL knob so that

the Deviation meter reading is 0.65 kHz ±0.05 kHz.

P

Press the [V/M] key again.

This completes the internal alignment routine for all
bands. To save all settings and exit, press the [HM/RV]
button.

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