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

1 Answer

Galaxy 99 v

No recived on am? outher then that the radio work great. on fm usb lsb. can some one help me please

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  • wilkjg Aug 21, 2008

    For a short period of time, you can receive on AM., then all the gain bottoms out and you cannot even hear any static. Tried lowering the RF gain, raising the rf gain, switching NB and NB+ in and out, cleaning the squelch, and a host of other trials with no good "solid" results. Sometimes pushing the mic transmitt button will bring the audio back as does turning the radio off then back on again... BUT, after a while, even those little tricks fail to help. As of yet, I have not seen any FIX for this issue. I am happy however to learn this problem is not just isolated to my radio. I will send an inquiry to Galaxy Tech Support. wilkjg@aol.com

  • CR PEP
    CR PEP Nov 25, 2008

    Same Problem about "The Receive"! I really Like The Rig, it's Great for just "Getting Away From The Crowds, Clowns on the Regular Bands"! I have 3 of the Rigs, but All have the same receive problem! Staying on the road, (Team Driver), I really need a Great Technician to go through it, replace the finals, (Both are Good), but New Matching is the best!

    I would need my Old Finals back, but a shop in Georgia would be Great! I hate to part with this one rig, and be down to 2! Therefore a Local, well Established shop, that is not going to "Burn Me" on the "Extras" in the rig would be Fantastic! Any Help would be Most Welcomed. And The Word Would Spread! A Good Shop is Hard to Find! I do not need some "Lot Radio Tech", messing it up! A Good Job on the 1st one, will bring in 2 more! Plus word of mouth as to who "Did Their Thing To It"! Thank's alot, and I need to Subscribe to your services. Just cannot find where on the "Home Page"? "DEALER" is the Handle. I do sale Amps, That's where the Handle came from.. Currently runnin' a "Real Palomar that Sets Alarms Off when I key her down". E-mail is:- I'll wait on that part, until I see if Ya'll can help out a Driver! Thank's Again. 4Whiskey1300. On the upstairs..

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  • 64 Answers

Likely the radio has a blown detector diode on the board as FM uses a special demodulation detection circuit called a quadrature detector or a discriminator detector the SSB circuit uses a product detector so the only other thing used in detection is the Am detector Diode. That is the first place to look if it is not bad it will be somewhere in that circuit.

Posted on Sep 12, 2010

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Posted on Jan 02, 2017

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1 Answer

I have a Galaxy ssb echo bace,with cw,fm,am,usb,lsb selection nobs.It power's up ok,but no transmit,or receave,please what could be the problum ? I can only guess maby the finals perhaps?


could be a number of problems,final being one of them.Could be a bad match to your antenna . could be a bad transformer or a rectifier . If you have no electronic knowledge take it to a tech a let them work on it. Could save you some money .

Dec 18, 2015 | Radio Communications

1 Answer

I have a superstar 3900 black but on am no mod but it keys up fm usb and lsb are fine


check the am voltage regulator. you should have 12vlts on pin 1 ,4volts on pin 2 ,13 vlts on pin 3 . go to ( CB tricks .com ) its the same board layout as galaxy 44 . http://www.cbtricks.com/radios/superstar/3900/graphics/ss3900_sch.gif if you are looking at the board on solder side ,knobs faceing you ,it is located on top left hand corner ,about 1 inch down you will see the slot cut into the board .if you have vlt on pin2 less than 4vlts or higher than 8vlts its bad. Galaxy DX Radios DX44V Service Manual its (tr) 51
Galaxy DX Radios DX44V Service Manual

Jun 02, 2014 | Cobra 148 GTL 120-Channels Base CB Radio

1 Answer

Ihave a gargeled recive sound


Check the position of the mode selector switch. You may be receiving a SSB (single side band) transmission that is not on the exact same frequency as you or, your radio is in AM or FM mode. You will need to select either USB or LSB (upper or lower side band) and vary the clarifier knob until the sound becomes intelligible. If the sound does not become clear, try the other side band and repeat varying the clarifier knob.

Conversely, if you are in USB or LSB mode and there is a transmission on AM or FM, it will have the same garbled sound. Try changing the mode to AM and the FM. If it does not become clear, it is likely a SSB transmission and you are not on the exact same frequency of the transmission you are hearing. Vary the clarifier knob until it becomes clear - or change to the other side band if needed and try the clairfier again.

The short story is that you must be in the same mode and on the same exact frequency. When in AM or FM, this is less of a problem as these are much more wide banded signals than SSB signals.

The 2990 is really a 50 watt 10 meter amateur radio - but is geared to CBer's as it is easily modified to work in the CB frequency range and the so called "free band" between USA's CB (11 meters) and worldwide amateur 10 meter bands. Be careful transmitting this radio on CB frequencies as it violates FCC rules for power output there - and transmitting in the 28MHz - 29.7MHz requires a valid amateur radio license. Fifty watts on ham frequencies is tiny compared to the 1500 watts permitted. Why not get your ham license (here's how) and leave the "Chicken Band" (and all it entails) behind. You won't miss it!

I hope this helps and good luck!

Apr 12, 2012 | Cobra Radio Communications

1 Answer

How to use ssb usb am cb radio


  • Well, AM is Amplitude Modulation and Sideband suppresses the carrier and uses only the top half (upper sideband) or lower half (lower sideband) of the wave.

  • Whether using AM, USB or LSB you are on the same frequency although if someone is on USB and you are on LSB you will not be able to understand what the other person is saying because you are using different parts of the wave. So 27.185 (channel 19) on AM, USB or LSB is still 27.185.

  • If you have further questions please let me know.

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

Oct 01, 2011 | Galaxy Radios DX-959 40-Channels Base CB...

1 Answer

Galaxy 99 has same frequency 27.185 on am also on upper side and lower side band how come?? thank you


The frequency doesn't change when you change to USB or LSB. Basically the AM frequency takes up a certain amount of space, known as bandwidth, so it could fill in for example use 50 hertz above and below 27.185 giving 100 hertz bandwidth. When you use sidebands the am bandwidth is split in two so the upper side band would use the 50 hertz above 27.185 and the lower side band would use the 50 hertz below. The idea is that twice as many operators can operate without interference.

Sep 17, 2010 | Galaxy Radios DX-99V 40-Channels Base CB...

1 Answer

Wat ar FM,AM,USB,LSB.CW. On a CB radio


FM - Freq. Modulation

AM - Audio Modulation

USB - Upper Side Band

LSB- Lower Side Band

CW- Morris Code

Nov 27, 2009 | Ranger Communications RCI-6900F-25 CB...

1 Answer

Rci 2980 no modauliton on am/lsb/usb/fm.but good recived. and good output.on am.


is it steady output on AM with no modulation swing. then change the Audio transistor. SSB should work. they feed straight through to rf final. if no modulation on either mode, then check the mic, audio ic preamp.

Nov 26, 2009 | Radio Communications

2 Answers

Super Star 3900 GHP


Can't help you there. It's most likely that you screwed the modulator up by extending the frequency range. I used to work for Galaxy and I know what happens to a radio when amateurs try to modify them (no offense). If you modify a high power radio such as your Super Star, you're bound to have modulation and SWR problems. In expert advice, never do amateur radio modifications to a high power radio. If you want a more versatile radio, get a Galaxy DX 2517 CB base station. The DX 2517 has PA/FM/AM/SSB/USB/LSB/CW modes, and bands A-F, and a frequency range from 25.615 to 29.205 MHz. The Galaxy DX 2517 has modifications that can be done right at the factory, they are optional however. The only thing I find annoying with the DX 2517 is that it's bulky, it leaves no room for any competition. When it was designed, the engineers left space saving out of the question.
Anyway, Good luck
and
Best Regards,
Gavin93

Aug 07, 2008 | Galaxy Radios DX- 88HL Base CB Radio

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