Question about Galaxy Radios DX-99V 40-Channels Base CB Radio

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Galaxy dx99v, bad squeal when I key the mic - Galaxy Radios DX-99V 40-Channels Base CB Radio

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Your microphone wires may be shorted take the mic plug apart (small screws) Now check for frayed wires touching or twisted together!
With the wires being resolderd or taped apart put back together
with the U pointing downward you shout have :
Right corner bottom Sheild ground!
Left corner bottom Black recive
Right corner top White or yellow this is Audio wire
Left corner top RED Transmit or PTT wire

If wiring looks good the problem is in the Mic take to servicer!

Posted on May 12, 2010

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Posted on Jan 02, 2017

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How do i set my galaxy dx 88 hl so the talkback is on all the time


turn the talkback knob to the right and push it in to engage talkback.when you get the volume you want leave it alone .Now key the mic.You will probably hear a squeal coming from the speaker.Now turn the volume down on the talkback knob until the squeal goes away.If you run your RF gain wide open it may squeal also.

Sep 25, 2013 | Galaxy Radios DX- 88HL Base CB Radio

1 Answer

Will a diesel 360-3 mic ork on a galaxy dx99v



  • Hi, I can help.

  • The Diesel Electronics CB will work but you have to wire it as stated below.

  1. #1 Shield and Black - Ground
  2. #2 Yellow - Audio
  3. #3 White - Transmit
  4. #4 Red - Receive

  • I don't know if anyone before you has re-pined that mic or not so if you just remove that little Philips screw at the mic connector and then give it a quarter turn you can slide the connector out and take a look and compare the wiring. The actual numbering for the pins on the Galaxy 4 pin mic connector is as indicated below in the diagram. As you look at the mic tip make sure the indent on the mic is as it is the diagram.
ironfist109_269.jpg


  • If you have any comments please feel free to leave them here.
  • Hope this helps and thank you for using FixYa.

Regards, Tony

Sep 22, 2011 | Galaxy Radios DX-99V 40-Channels Base CB...

1 Answer

No transmit on a galaxy dx99v


Meter.......... oh that was to little effort.
Check the mic a broken wires/solder connection in the cord are often the most common problems. Bad mic switch?
If no luck with that pull speaker side bottom cover. Notice on back end inside of radio 3 square, black, 3 legged transistors. Which mounted to case they should not be cracked or discolored. The far left one is a predriver this would stop all tx the other 2 are finals which would just degrade power. After checking this check resistors for discoloration. A cold solder joint can act as a open connection notice the color of the solder on the other side of board a dull color to the solder is a indicator. If you suspect a cold solder press down with care and a nonmetallic tool in that area with power on and radio keyed while watching meter.
Finals can and do fail when over stressed by power modifications make to these 40 watt radios.


Although you have a aging rig Jul-2006 Stopped Production that has electrolytic capacitors that dry and leak these units can be very durable if they have not sat unpowered for long periods.
Hope this helps

Aug 25, 2011 | Galaxy Radios DX- 88HL Base CB Radio

1 Answer

My radio is a Galaxy DX 98. It squeals when I key up


change "MIC" to a factory,or turn back Mic gain. Mic can short out or may have too much gain(power mics). Use standard dead Mic that was designed for radio. If that does not help,it may be inside radio, wires on MIC connectors need soldered again(make sure they don't touch th eothers.

Apr 23, 2011 | Radio Communications

1 Answer

Frequency counter displays two digets high from hump on fine clarifier adjestment on usb.27.186 insted of 27.185. also in am mode shows dead on with clarifer hump until mic is keyed thin dropes from 27.185...


Turn that fine clarifier a 1/4 turn or so to the right. I own a Galaxy DX99V and sometimes if that clarifier is just right it will drop down a hundredth of a MHz just like that when the mic is keyed. Your radio is just fine. Just adjust that clarifier a tad. The Galaxy DX99V is one of the best radios out there. I love them. -73-

Mar 10, 2011 | Galaxy Radios DX-99V 40-Channels Base CB...

1 Answer

I have a uniden grant and i have wired a galaxy power desk mic with rogger beep when ever i key it up it squeals was wondering is there a way to fix that


yeah your mic gain is way too high. You can either turn off talk back if you can, or turn the gain down. Depending on how loud the talk back is, your audio may suffer. If that is the case, you will not be able to run that mic. Get an RK-56 or a Skythumper mic. They are noise canceling. You will get no squeal with that mic, and it will sound awesome.

If you really want a roger beep, take it to a tech and them install one.

Oct 23, 2010 | Galaxy Radios DX-66V Base CB Radio

1 Answer

Galaxy 95T


check SWR's check to make sure ALL coax connectors are tight. and if still doing it. may be loose connection in board. but the export style radios go crazy like that when coax is loose or have bad grounds. due to there floating ground circuit design. there not the same as a cobra were its case is ground.

Feb 03, 2009 | Galaxy Radios DX-95T Base CB Radio

3 Answers

Galaxy dx99v cb radio


did this problem occur while radio was being operated? or when it was being worked on? or a result of being worked on?

Dec 04, 2007 | Galaxy Radios DX- 88HL Base CB Radio

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