Question about Radio Communications

1 Answer

Maycom EM-27 Transmit noise

I have a Maycom EM-27 CB radio recenlty fitted into my MINI. When in use I can receive all transmissions from others loud and very clear BUT when transmitting back to them they are reporting that I am coming through very noisy and "crackling". I have installed an in-line supressor on the CB supply but this hasnt got rid of the noise.
Any advice on what to suppress next would be very help full.


Posted by on


1 Answer

  • Level 1:

    An expert who has achieved level 1.

  • Contributor
  • 1 Answer

You don't need a noise supressor, i belive you have to change the mic or check real good your mic, specialy the transmit botton

Posted on May 10, 2008


1 Suggested Answer

  • 2 Answers

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

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.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


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



Related Questions:

2 Answers

Why is humming coming from speaker when mic is keyed?

this is strange as most times if a proper transmit key is depressed , then the radio switches from receive to transmit , the mfg know this would cause some great squeal from receiver /transmitting so close to a receiver so the part that is the receiver is muted to keep this from happening , id say there is some fault in the part that does this muting of receiver

Apr 13, 2016 | Radio Communications

1 Answer

No transmit or recieve

sounds like a repair for a tech to me.

Jan 16, 2014 | Galaxy Radios SSB Echo Base Station CB...

1 Answer

CB Humming loudly when not transmitting, but recieving

You probably will have to dig into the unit to find out what's causing the hum.

The 5-pin connector is a mike connector, not a DIN

Jul 03, 2013 | Radio Communications

5 Answers

I jus was wondering, can the cb radio and the handheld radio transmit on the same channel? Im a security officer and im interested in purchase a cb radio so we can use it at work but i dont know if its...

CB radios and hand-held CB radios can operate on the same channel and be in contact with each other. Other hand-held radios do not operate on the same frequencies and even though they may have channel numbers the channels have different frequencies and will not operate to CB radios.

Oct 29, 2010 | Cobra 150 GTL DX Base CB Radio

1 Answer

When I depress the transmit button the cb puts a squel out to other radios on the same channel yet I have no problem hearing transmissions from the other radios

It sounds like the mic either has a problem, or its wired incorrectly for that radio.

Try a new mic, and make sure it's wired for that radio.

Also, if you have talk back then it's too loud, or your mic gain is too high.

The type of radio would help me know weather or not it could be the mic wiring.

Oct 20, 2010 | Radio Communications

1 Answer

2002 Honda GL 1800 Gold Wing CB radio receives but won't transmit

Hi, Ohenry428 for this scenario you will need your service manual, parts fiche, and owners manual if you can't find the best tool you ever bought for your Honda, despair not, for a mere zero $0 you can download another one.
For more information about your issue and valuable "FREE" downloads that you will need for viewing or printing please click on the blue links below. Good luck and have a wonderful day.
New CB Radio in 02 GL1800 Won Transmit
cb radio no transmit GL1800 Information Questions goldwingdocs com
Honda GL1800 Service Manual

Jun 20, 2010 | 2002 Honda GL 1800 Gold Wing

1 Answer

Mic hum

Yes, the wiring is different. Reverse the wires on pins 1 & 2, then reverse the wires on pins 3 & 4.

The wiring for you radio's mike is:

1- Audio
2-Ground (Shield)

Depending on the vintage of your mike, the colors Uniden uses for these functions are white or yellow for audio, red is transmit & black is receive.

Jul 31, 2008 | Superstar SS-121 120-Channels Base CB...

1 Answer

Roger bleep kit

throw that annoying noise maker away

Jul 07, 2008 | Midland 1001Z 40-Channels Base CB Radio

Not finding what you are looking for?
Radio Communications Logo

Related Topics:

230 people viewed this question

Ask a Question

Usually answered in minutes!

Top Radio Communications Experts


Level 3 Expert

1654 Answers

Brad Brown

Level 3 Expert

16852 Answers

Mike Charette

Level 3 Expert

1795 Answers

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

Answer questions

Manuals & User Guides