Question about Radio Shack TRC-447 CB Radio

1 Answer

Clipping the Mod limitter

My trc 447 is low and i want to clip the mod limitter and i do not know which one it is so can you please help me with finding the right one or point me in the direction to where i can find the wiring manuals for it

Posted by on

Ad

1 Answer

  • Level 1:

    An expert who has achieved level 1.

    MVP:

    An expert that gotĀ 5 achievements.

    Governor:

    An expert whose answer gotĀ voted for 20 times.

    Hot-Shot:

    An expert who has answered 20 questions.

  • Contributor
  • 25 Answers

DO NOT CLIP THE LIMITER! You may wind up with splattering audio. The best thing you could do is find the modulation pot and turn it a bit to achieve more modulation. I am not familiar with your radio, so I could not tell you where that pot is. You may be disappointed in the results if you clip the limiter.

Posted on Jul 17, 2009

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

Hi,
a 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of.(from cars to computers, handyman, and even drones)
click here to download the app (for users in the US for now) and get all the help you need.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

2 Answers

Got a radioshack trc-487 and I need some information on how to peak and tune it... wheres the modulation pot? which coils do I tune? and whats the numbers on the motherboard


  • There is no need to send the radio to some unsanctioned moonlighter.
  • I normally don't recommend clipping parts but for this radio there is not much else to do and it looks OK on an Oscilloscope too. Clip diode 205 to increase modulation. Then take a plastic flat tool and spread L 203 coils apart about a 1/8" each, nice and even and make sure they don't touch any metal.

  • Hope this helps.

Nov 16, 2011 | Radio Communications

1 Answer

Have trc 457 need to clip mod limiter, what to look for?


why do you want to clip the limiter ? you will be overmodulaing the audio and bleeding over all the channels and this is great but also a good way to loose friends because while you are talking they cannot listen because your voice will be coming through their radio. the best thing to do is leave it alone and find the variable to turn the mod up then you should be at around 90% modulation .

Nov 10, 2011 | Radio Shack Radio Communications

1 Answer

How to set CB TRC-447?


There is a mod for the TRC-447. The AMC sensor is Q205 and I never really recommend cutting anything related to the AMC but this radio is the aception to the rule. I posted a picture for you. The red marking is Q205. Follow these instructions carefully and you should have a much louder CB. Q205 has three legs. One on one side and two on the other side. You need to cut the soldier leg on the side with two legs. This will be the leg closets to the bottom of the diagram I posted. Use a razor and and perhaps a magnifying glass and be very steady. You want to make a complete cut until you see nothing but the circuit board. You may have to make more than one pass. It is very important you only cut the bottom leg. When your done with that turn the radio over and spred L205 and L203 with a plastic screwdriver. Spread them evenly and make sure they don't touch anything when you are done.
ironfist109_13.jpg

Feb 05, 2011 | Radio Shack TRC-447 CB Radio

1 Answer

Como puedo subirle lapotencia y la modulacion a mi radioshack trc 447,cual tornillo debo mover?


There is a mod for the TRC-447. The AMC sensor is Q205 and I never really recommen cutting anything related to the AMC but this radio is the aception to the rule. I posted a picture for you. The red marking is Q205. Follow these instructions carefully and you should have a much louder CB. Q205 has three legs. One on one side and two on the other side. You need to cut the soldier leg on the side with two legs. This will be the leg closets to the bottom of the diagram I posted. Use a razor and and perhaps a magnifying glass and be very steady. You want to make a complete cut until you see nothing but the circuit board. You may have to make more than one pass. It is very important you only cut the bottom leg. When your done with that turn the radio over and spred L205 and L203 with a plastic screwdriver. Spread them evenly and make sure they don't touch anything when you are done. ironfist109_11.jpg

Jan 27, 2011 | Radio Shack TRC-447 CB Radio

2 Answers

How to adjust the cb trc-447


Adjustments for the TRC-447 Cb - The AMC sensor is Q205 and I never really recommend cutting anything related to the AMC but this radio is the aception to the rule. I posted a picture for you. The red marking is Q205. Follow these instructions carefully and you should have a much louder CB. Q205 has three legs. One on one side and two on the other side. You need to cut the soldier leg on the side with two legs. This will be the leg closets to the bottom of the diagram I posted. Use a razor and and perhaps a magnifying glass and be very steady. You want to make a complete cut until you see nothing but the circuit board. You may have to make more than one pass. It is very important you only cut the bottom leg. When your done with that turn the radio over and spred L205 and L203 with a plastic screwdriver. Spread them evenly and make sure they don't touch anything when you are done.
ironfist109_15.jpg


Jan 22, 2011 | Radio Shack TRC-447 CB Radio

2 Answers

Need to replace microphone on a Radio Shack TRC 447 CB. 6 pin Anybody know?


A great mic is the RK56 $39.99+tax in Temple, TX on Hwy 95.. And comes with a 4pin for cobras but can be wired for any radio

Aug 09, 2010 | Radio Shack TRC-447 CB Radio

4 Answers

Radio shack trc-447


According to the service manual for the TRC-447, the only adjustment is for "power" which is #L205. The only other step in the transmitter alignment is for the "S" meter.
On the Cobra, VR4 is AMC, L14,L13,L12 is AM power.

Jan 31, 2009 | Radio Shack TRC-447 CB Radio

Not finding what you are looking for?
Radio Shack TRC-447 CB Radio Logo

Related Topics:

401 people viewed this question

Ask a Question

Usually answered in minutes!

Top Radio Shack Radio Communications Experts

John
John

Level 2 Expert

509 Answers

Greg Cann
Greg Cann

Level 3 Expert

1114 Answers

Jason

Level 2 Expert

211 Answers

Are you a Radio Shack Radio Communication Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...