Realisitic TRC-476
Documentation Project

CBTricks.com

Receiver and Weather Radio Alignment

Receiver Section

Test Equipment Required
a. RF Signal Generator (RFSG)
b. SSVM
c. Distortion Meter
d. DC Power Supply

Alignment Procedure

Step

Setting

Connection

Adjust

Adjust for

1

Audio output Adjustment:
MIC: Receive
Volume: Fully clockwise
Squelch: Turn to counterclockwise
CH selector: 19
RF Gain: Fully clockwise
Function: CR/PA PA, ANL, NB,
CH9: OFF
RFSG: 27.185MHz, 1kHz,
1uV 30% Mod.

Connect RF Signal Generator to EXT-ANT jack. Connect SSVM and distortion meter across EXT speaker jack with 8 ohm dummy load

L101 L102
L103 L104
L105 L106

Maximum indication on SSVM. Reduce output from RFSG until the audio output becomes about 500mW (2V)

2

Squelch adjustment:
MIC: Receive
RFSG: 27.18SMHz,1kHz,
1mV 30% Mod.
Squelch: Clockwise
CH Selector: 19
Volume: 500mW (2V)
RF Gain: Fully clockwise
Function: CR/PA PA, ANL, NB,
CH9: OFF

Connect RF Signal Generator to EXT-ANT jack. Connect SSVM and distortion meter across EXT speaker jack with 8 ohm dummy load

RV203

Adjust until the audio output appears.

3

RF Signal meter adjustment:
MIC: Receive
RFSG: 27.185MHz, 1kHz
100mV, 30% Mod.
Squelch: Fully counterclockwise
Volume: 500mW (2V)
RF Gain: Fully clockwise.
Function: CR/PA PA, ANL, NB,
CH9: OFF

Connect RF Signal Generator to EXT-ANT jack. Connect SSVM and distortion meter across the EXT speaker jack with 8 ohm dummy load

RV201

Adjust until the 3rd LED on the S/RF meter lights up.

 

Weather Radio Section

Test Equipment Required
a. RF Signal Generator (RFSG)
b. SSVM
c. Distortion Meter
d. Power Supply

Alignment Procedure

Step

Setting

Connection

Adjust

Adjust for

1

MIC: Receive
Volume: Fully clockwise
Squelch: Optional
CH Selector: Optional
RF Gain: Optional
Function: WX2 PA, ANL, NB,
CH9: Off
RFSG: 162.475MHz, FM 1kHz,
1mV, 33kHz deviation.

Connect RF Signal Generator to EXT-ANT jack. Connect SSVM and distortion meter across EXT speaker jack with 8 ohm dummy load.

L604

Maximum indication on SSVM. Reduce audio output from RFSG until it becomes about 500mW (2V) and Minimum indication on distortion meter.

2

MIC: Receive
Volume: 500mV (2V)
Squelch: Optional
Function: WX2 PA, ANL, NB,
CH9: Off
RFSG: 162.475MHz, FM 1kHz,
1uV 3.3kHz Deviation

Connect RF Signal Generator to EXT-ANT jack. Connect SSVM and distortion meter across EXT speaker jack with 8 ohm dummy load

L601 L602

Maximum indication on SSVM and minimum indication on distortion meter

3

MIC: Receive
Volume: 500mV (2V)
Squelch: Optional
RF Gain: Optional
Function: WX1 PA, ANL, NB,
CH9: Off
RFSG: 162.400MHz, FM 1kHz,
1uV 3.3kHz Deviation

Connect RF Signal Generator to EXT-ANT jack. Connect SSVM and distortion meter across EXT speaker jack with 8 ohm dummy load.

L605

Maximum indication on SSVM and minimum indication on distortion meter.

4

MIC: Receive
Volume: 500mW (2V)
Squelch: Optional
RF Gain: Optional
Function: WX3 PA, ANL, NB,
CH9: Off
SSG: 162.400MHz, FM 1kHz,
1uV 3.3kHz Deviation

Connect RF Signal Generator to EXT-ANT jack. Connect SSVM and distortion meter across EXT speaker jack with 8 ohm dummy load.

L625

Maximum indication on SSVM and minimum indication on distortion meter.

 


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we cannot guarantee that the instructions will work on every radio presented.