Question about Radio Shack TRC-447 CB Radio

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How to adtust modulation on a radioshack cb trc-496

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Mike Charette

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  • Radio Shack Master
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VR-7 mod and L6 , L7 , L14 FOR POWER

Posted on Jul 17, 2015

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Ekse

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SOURCE: Radio Shack TRC-502 cb radio

Here is the owners manual I'l see if I can get my hands on a internal schematic

http://support.radioshack.com/support_electronics/doc62/62220.pdf

Posted on May 14, 2008

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Anonymous

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SOURCE: Radioshack TRC-503 CB radio

First, use an ohm meter and test the power wires for continuity. If they test good then there is a protection diode on the board that is probably blown. If I remember right it is a 1N4001 diode. Generally you can see if its blown as it will either be burnt or look like its cracked. If it is you will need to replace that diode to restore power.

Posted on Aug 28, 2009

Anonymous

  • 3 Answers

SOURCE: I was wondering what was the range for the

Antenna :
-should be tuned, have good coax with no pinches, whip is centered over highest flat metal surface, no metal beside adjacent to whip, power is wired to battery direct, not to ignition or cigg lighter. whip is wiped clean of corrosion, whip is up, longer is better.
Praire City car-to-car: 15-20 km's
Praire Rural car-to-car: four-thirds over the horizon. Probably 60 km's.
Alot further over water.
Less within trees and mountains/valleys.
Google "Ham radio" & "ducting" "inversion" "skip" "sun-spots"
these refer to a condition where a radio signal getting stuck between the upper and lower atmospheres and travel intact for 1000's of km's (canada to mexico for example)

Posted on Sep 06, 2009

thndr143

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SOURCE: how many amps does a Reakistic CB radio TRC-474

4 amps MAX

Posted on Jan 30, 2010

Mister 44

Jim Verge

  • 35 Answers

SOURCE: Where can I get a circuitboard schematic for my

Try the radio shack website.
They have some service manuals that you can download.
Best of Luck!

Posted on Apr 12, 2010

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I have a radioshack TRC 496 cb radio and can't find a replacement microphone but if I had a wire schematic or the pins identified I could possibly wire a different mic into it. Can anyone help me out?


Try this link, it may be of help The CB Radio Talk Forum • View topic - microphone<radio ... www.cbradiotalk.com/viewtopic.php?f=32&t=15385
  • Last updated: Dec 30, 2007 ·
  • 5 posts ·
  • First post: Dec 30, 2007
I have a trc 496 rat shack 40 chnl cb, it has a modular jack on the mic which plugs into it<like a phone jack>, anyone know where I can get a mic like this preferably ...

Aug 30, 2014 | Radio Communications

4 Answers

Radio Shack TRC-502 cb radio


Here is the owners manual I'l see if I can get my hands on a internal schematic

http://support.radioshack.com/support_electronics/doc62/62220.pdf

May 14, 2008 | Radio Shack TRC-503 CB Radio

1 Answer

Need the wiring for mic on trc 502


My understanding of the TRC-502 is that it is 49 MHZ not CB. With that said I cant find
a microphone diagram for that specific radio. I found a 503 but that is a CB. I couldnt find a
wiring diagram for either radio. You could always call Radio Shack or The Shack, contact them online or call and ask for the info.
Call: 1-800-843-7422
http://www.radioshack.com/home/index.jsp

Mar 17, 2011 | Radio Shack TRC-447 CB Radio

1 Answer

I need a mic for my TRC-447 where can I find one? they no longer carry it at radioshack.


You have not specified which country, state or county you are in so we cant even suggest a shop in your country. Find a local CB dealer and take the radio there, they will be able to wire up a microphone for the radio.

Dec 28, 2010 | Radio Shack TRC-447 CB Radio

1 Answer

Where can I get a circuitboard schematic for my


Try the radio shack website.
They have some service manuals that you can download.
Best of Luck!

Mar 11, 2010 | Radio Shack TRC-503 CB Radio

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