Question about Galaxy Radios DX-33HML 40-Channels Base CB Radio

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I have a Galaxy DX 33hml. It receives well and transmits loud for about 20 seconds then just transmits noise and static. What could cause this?

Posted by Anonymous on

  • Anonymous Jan 03, 2011

    Coax and antenna are ok. Other CBs work fine on the line. The modulation is the only problem. It sounds good until something warms up and then the modulation slowly goes to noise and static. It also does this on PA. It had a npc mod and I took it out. Something is bad and I'm trying to find out what it is.

  • Anonymous Jan 04, 2011

    I don't have one close by. If I knew it was the audio chip or something, I could replace it myself. I have spare parts. Everyone says it sounds great the first few times I transmit, then it slowly starts loosing modulation and goes to loud noise and static for modulation. Does the same when in PA mode. Does the driver and final have anything to do with PA mode or could it be the audio amp?

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  • 44 Answers

Have you got antina to mach radio power if so check coxail

Posted on Jan 03, 2011

  • chip_1964 Jan 04, 2011

    i would take it in to a CB shop and have it checked out you may have done something when you took out the npc it may be a transistor

  • Anonymous Jan 04, 2011

    I don't have one close. It does great the first few times I transmit then modulation deteriorates and turns to noise and static. Does the same in PA mode. Do the driver and final have anything to do in PA mode or could it be the audio amp?

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1 Answer

Galaxy dx 33HML


you played with it ,now take it to a tech and let him tune it for you.

Jun 18, 2013 | Galaxy Radios DX-33HML 40-Channels Base CB...

1 Answer

My dx 33hml will not transmit


make sure the mic is wired correctly for this radio--lots of different 4 pin connections are possible or have it tested by a shop

Apr 18, 2012 | Galaxy Radios DX-33HML 40-Channels Base CB...

1 Answer

I have a galaxy 33hml and i can not figure out how to set it up with the nobs i mean can you help me....


first of all is it set up to a antenna source? if so then turn the squelch nob counter clockwise all the way, then turn the device on. next start at channel one and slowly turn the squelch clockwise until the pin moves or you hear static. then surf the channels adjusting the squelch to to that static point until you find your active station. from there to cancel static between transmissions turn the squelch so that it is just below the static marker.

Feb 10, 2011 | Galaxy Radios DX-33HML 40-Channels Base CB...

2 Answers

How to adjust frequency on transmit??? Galaxy


hELLO THERE
hERE IS SOME MODIFICATIONS FOR THIS RADIO
Galaxy Mods DX 2527 - VR 1....AM/FM S-Meter, VR 2....SSB S-Meter, VR 3....SSB Squelch Range, VR 4....AM/FM Squelch Range, VR 7....SSB Carrier Balance, VR 8....RF Meter, VR11...Driver Bias, VR12...SSB ALC, VR13...Hi Power, VR14...AMC, VR15...AM Low Power, VR16...SSB Low Power, VC 1....10.240, VC 2....10.240. DX 2517- VR 1....AM/FM S-Meter, VR 2....SSB S-Meter, VR 3....SSB Squelch Range, VR 4....AM/FM Squelch Range, VR 5....FM Deviation, VR 6....SSB Carrier Balance, VR 7....TX Offset, VR 8....CW Beep Level, VR 9....RF Meter, VR10...Final Bias, VR11...Final Bias, VR12...Driver Bias, VR13...SSB ALC, VR14...AM/FM High Power, VR15...AM Modulation Meter, VR16...AM Modulation, VR17...SSB Power, VR18...AM/FM Low Power, VR601..13.8 Volt Power Supply. DX 22B- VR 1....AM/FM S-Meter, VR 2....SSB S-Meter, VR 3....SSB Squelch Range, VR 4....AM/FM Squelch Range, VR 7....SSB Carrier Balance, VR 8....RF Meter, VR11...Driver Bias, VR12...SSB ALC, VR13...High Power, VR14...AMC, VR15...AM Low Power, VR16...SSB Low Power, VR21...TX Offset, VC 1....10.240, VC 2....10.240. DX 11B- VR 1....AM/FM S-Meter, VR 2....SSB/CW S-Meter, VR 3....SSB Squelch Range, VR 4....AM/FM Squelch Range, VR 5.....FM Deviation, VR 7....SSB Carrier Balance, VR 8....RF Meter, VR10...Final Bias, VR11...Driver Bias, VR12...SSB ALC, VR13...AM/FM High Power, VR14...AM Modulation, VR16...CW Tone Level, VR20...Final Bias, VR21...TX Offset, VR601..13.8 Volt Power Supply, VR803..AM/FM Low Power. DX 77HML, DX 88HL, and DX 99V- VR 1....AM/FM S-Meter, VR 2....SSB S-Meter, VR 3....SSB Squelch Range, VR 4....AM/FM Squelch Range, VR 5.....FM Deviation, VR 7....SSB Carrier Balance, VR 8....RF Meter, VR10...Final Bias, VR11...Driver Bias, VR12...SSB ALC, VR13...AM/FM High Power, VR14...AM Modulation, VR16...AM/FM Low Power, VR20...Final Bias, VR21...TX Offset.
Unmarked VR in R189..AM/FM Medium Power for DX 77HML only. DX 33HML, DX 44V, DX 55V, DX 66V, and DX 73V- VR 1....AM/FM S-Meter, VR 4....AM/FM Squelch Range, VR 5.....FM Deviation, VR 8....RF Meter, VR12...Low Power AM Modulation, VR13...AM/FM High Power, VR14...High Power AM Modulation, VR16...AM/FM Low Power.
Unmarked VR in R188..AM/FM Medium Power (DX 33HML only)
Unmarked VR in C139..Med Power AM modulation (DX 33HML only) DX 949,DX 959- VR 1....AM S-Meter, VR 2....SSB S-Meter, VR 3....SSB Squelch Range, VR 4....AM Squelch Range, VR 6.....SSB Carrier Balance, VR 7....TX Offset, VR 9....RF Meter, VR10...Final Bias, VR12...Driver Bias, VR13...SSB ALC, VR14...AM High Power, VR15...AM Modulation Meter, VR16...AM Modulation, VR17...SSB Power, VR18...AM Low Power, VC1....10.240. DX 2517 and DX 2527-
Symptom:Buzzing or motorboating sound in either the transmit or receive.
Problem: TR602 is oscillating
Cure: Replace C602 with a .01uF cap {Cap is located in the power supply board}.
RG 66,99,DX2517 Replace Q54 2SB754 60watt 7A with a higher power 2SB817 100 Watt 12A. Derating of this component will cool operation, provide better voltage stability,decrease wobble, allow voltage increase to 14.5 volts comfortably. (replace 10 volt caps in this section of the radio to a minimum of 16 volts before increasing supply voltage to this level)and provide faster swing rise time, Replace Q37 2SA473 to a 2SA1012-0 or ECG153 this will improve the clarity and volume of the modulation and it will also run a lot cooler.

Nov 12, 2009 | Galaxy Radios DX-949 40-Channels Base CB...

1 Answer

Band selection an freq. doesnt align galaxy 33hml


sounds to me someone was tampering with it ,your best bet is to get a frequency counter and realine the radio .start from 27.185 centre band you can do this by tuning the ossolator be very careful not to damage this should realine the radio for you goodluck

Oct 16, 2009 | Galaxy Radios DX-33HML 40-Channels Base CB...

3 Answers

GALAXY 88 HIGHT STATIC IN THE RECEIVE ..


Hi,

If the antenna for the other properly operating radio is used with the radio with the noise and you are getting the static then we can assume it is the radio. If you hear signals with the static, that is, it does receive communications at the same time, there may be a problem with the noise reduction circuitry, or a defective component(s) in the receiver. Without knowing your experience I would suggest taking to a radio shop.

Oct 10, 2008 | Galaxy Radios DX- 88HL Base CB Radio

2 Answers

Cb radio


Some CB Radios require the mic works right or the receive won't work. Also it could be a detector diode bad. I have also found cold solder joints ( broken lead from the PC Board ) around the if sections. You might take alook with a magnifing glass and see if you can see any bad joints. Good Luck
Ed
NC Electronic
Mills, Wyoming

Dec 02, 2007 | Galaxy Radios DX-33HML 40-Channels Base CB...

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