Tip & How-To about Galaxy Radios DX-959 40-Channels Base CB Radio

Galaxy DX 959 CB radio no transmit or talkback

Hi, I have a problem with this CB radio. The PA works good but after installing the MOSFET kit as mentioned here http://cgi.ebay.com/DUAL-POWER-TRANSISTOR-MOD-KIT-GALAXY-949-959_W0QQitemZ190256621565QQcmdZViewItem?hash=item190256621565&_trkparms=72%3A1205%7C39%3A1%7C66%3A2%7C65%3A12%7C240%3A1318&_trksid=p3286.c0.m14 it wont transmit and I cant hear myself on talkback nor do I hear the roger beep. The PA amp works though.

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2 Answers

will a mosfet 520 swing kit give me mor watage to my cobra 29 lx 29 lx


yes , but for the amount you get its hardly going to be worth it.this radio has all kinds of limiters in and it won't let you do one thing without doing this other thing first.A small 100 watt kicker will do a better job and nothing to do to the radio except turn the wattage down so its linier friendly.

Jul 30, 2014 | Cobra 29lx Cb Radio W/clock 29 Lx Lcd

1 Answer

CB Plays out PA Speaker


it is possible that the PA speaker output is intended for a normal (unpowered, unamplified) speaker. Perhaps in your case the audio you hear from the PA speaker is only signal leakage from the PA Speaker connection.
To know.. connect a regular speaker to the PA speaker connector (any speaker, home audio, old car 6x9....). If the PA works and drives the temporary speaker OK, and you hear no CB receive, then the PA output is for a normal speaker, with leakage of CB audio.
It is just a guess, but easy to try.

May 04, 2014 | Radio Communications

1 Answer

CB in Receive Mode Plays Out the PA Speaker


no,its supposed to work that way so you can monitor it while you are outside your vehicle.

May 04, 2014 | Radio Communications

1 Answer

Hi I've replaced the final with rf 520 & some caps etc, but now the niddle is not moving can you tell me what is wrong or what should I do thanx George.


Check the polarity of your caps (not ceramic of course they are not polarized) and the compansion parts or diode if you built your own. The diode banded end should be toward front of radio.
Check that you have not bumped that pa switch it has happened to me numerous times.
Just a side note after go back thru your work and it starts swing again if it is a china made you may need to remove a turn off of L14 to get max swing. Dont leave the plug out it creates harmonics!!
I like this mod site it has a mosfet mod without compansion parts http://www.dtbradio.com/tips.html Good luck

Aug 19, 2011 | Cobra 29 LTD CB Radio

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