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: |
Connect RF Signal Generator to EXT-ANT jack. Connect SSVM and distortion meter across EXT speaker jack with 8 ohm dummy load |
L101
L102 |
Maximum indication on SSVM. Reduce output from RFSG until the audio output becomes about 500mW (2V) |
2 |
Squelch
adjustment: |
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: |
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 |
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 |
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 |
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 |
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. |
Disclaimer: Although the greatest care has been taken while compiling these documents,
we cannot guarantee that the instructions will work on every radio presented.