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

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Gets hung on Feq. 30.110

My 99 started just changing frequency by itself. Now it is hung on 30.110.
Any ideas?

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  • james morgan May 11, 2010

    is this the new version or a older radio and how old, what has been done to the radio aligned frequency mod ?????

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  • 219 Answers

Either a bad soilder on one of your legs of the crystal or the crsytal is bad

Posted on Dec 16, 2009

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1 Answer

On a galaxy 66 v it was working then feq and channels got real dim and went out what cause that


could be but check the reverse polarity diode first and see if its blown. If it is replace it with the same diode .1n4001

Dec 14, 2014 | Radio Communications

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Uniden madison transmitting incorrectly


Sounds like You have a Sodier problem bleed from you're Squelch knob, and or Gain control

Jan 21, 2014 | Uniden Radio Communications

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Why does my moonraker cb change channels by itself.


This can be caused by RF feedback. RF is radio frequency energy - the same energy that your transmitter puts out onto the coax cable & antenna.

RF feedback is similar to audio feedback in that some of the output re-enters the circuit in a place it doesn't belong or is designed. RF feedback is a direct result of a poorly matched antenna system as shown by an SWR meter. A standing wave ratio or "SWR" of 2.0:1 - 2:5.1 (read this as: two point zero to one and two point five to one) or greater is generally accepted as the worst SWR a transmitter can tolerate - but also requires lowering RF power (wattage) to continue transmitting.

Some common sources of high SWR are: 1) wrong cable type (usually a 50 ohm cable is used), 2) damaged cable, 3) untuned antenna, 4) damaged previously tuned antenna, etc. The SWR of an antenna system should be checked and adjusted as needed to assure maximum power transfer to the antenna. If the system has a high SWR, the antenna reflects some of the RF energy back on the coax - into the radio. The effects can be tingles / burns on the lips - if using a mic with a metal guard, noise, and erratic operation of some rig settings. This energy is unexpected and can cause all sorts of strange radio operations and is not an uncommon occurrence in a situation such as this.

You can correct this problem by purchasing or borrowing an SWR meter or bridge designed to work in the range of frequencies that your CB uses. Follow the directions included to lengthen or shorten antenna elements as needed. An ideal SWR is 1.1:1. Generally, any value of SWR less than 1.5:1 is considered very good. A check of SWR on the low, mid and highest frequencies will give you an idea as to how well the antenna works on the frequencies you use, and let you know which frequencies you should avoid.

Good luck!

Apr 21, 2012 | Radio Communications

1 Answer

DX 66v slides up and down 3-5 hundreds...not all the time but when it does the counter and the radio both do it. Any ideas. Thanks


Yes, cheaply made radio with parts that drift and affect frequency is the answer here.

Going to be hard to find and suspect one is in the PLL area that controls where transmit and receive frequencies are.

Apr 20, 2012 | Radio Communications

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...

2 Answers

Galaxy 99v off Frequency


it is either a bad soilder on your crystal or your crystal is going bad

Dec 15, 2009 | Galaxy Radios DX-99V 40-Channels Base CB...

1 Answer

C.b. is transmitting weak.


If it is low audio, it could be a problem with your mic or his speaker. If your signal is low, I suspect it is likely to be an issue with your antenna system.

The antenna systen consists of the feedline or coax cable and the antenna. The feedline should be inspected for evidence of damage from being pinched, cut or water entry over its entire length., Remove, replace or reposition to prevent the cable from becoming damaged in any way.

The antenna itself should ideally be located at the highest point on the vehicle. Further, it should be secured to firmly into the metal parts of vehicle - preferable to a large, flat surface. The surface should be grounded.

Matching the antenna system for lowest SWR to the transmitter is required. SWR is a ratio of "power out" of the transmitter to "power that is reflected back" from the antenna. Ideal theoretical ratio or "match" is 1:1 (or one to one). Real-life is more like 1.1:1 (one point one to one). Most transmitters are perfectly happy with a match (or mismatch as the case may be) of 1.5:1 and some even up to 2.0:1. More than this is asking for trouble. A mismatched antenna system can cause RFI and failure of the output final transistors.

Matching or lowering the SWR of a radio to an antenna system requires that an SWR meter be installed between the antenna coax or cable and the transmitter's antenna connection point. There are two types of meters - dual needle and single needle. The dual type is more expensive, but easier to work. The meter must be capable of working on the frequency it is to used on. This means if it is marked as a 400 - 512 Mhz or UHF type, it will probably not be accurate on 27 Mhz or HF.

Once the meter has been installed, transmit the highest frequency or channel and take readings. Do the same at the lowest and a middle frequencies and record findings. Physically adjust the length of the antenna whip up or down in the antenna base - by no more than 1/4" inch (for 27MHz CB frequencies) and check again. After a few tries in one direction, you should begin to see how shortening or lengthening the whip changes the SWR of the system. Once set correctly, the middle frequency will have the lowest SWR value while the lowest and highest frequencies will have pretty close to equal, but higher SWR values. It would look something like this: Ch1 = 1.6:1 Ch 20 = 1.2:1 Ch40= 1.6:1 Of course, if Ch1 = 1.7:1 and Ch 40 = 1.6:1 that would be fine, too. Once completed, the SWR meter can be removed from the antenna system.

A poorly matched antenna system can cause permanent damage to the transmitter, if not corrected.


Sep 21, 2009 | Cobra Radio Communications

1 Answer

Connex 3300 HP Various Problems


If you could call me at 904-845-3847. not sure how much you know about repair of radios but don't mind helping you, just hard to type in an answer. Mel

Jul 26, 2009 | Radio Communications

1 Answer

Cobra 19 DX IV CB Radio Gets no signal at all


my only idea is the frequency that Canadians transmit/recieve on is different than us down south (in the USA). I know Europe and the UK use a different frequency range so my guess is that Canada uses a different radio frequency range than the U.S. making you unable to communicate with fellow radio users. You may be able to search the frequency range for Canada vs. the U.S. and see if there's a difference. Hope this helps...and again, it's just a thought.
Montana, USA

Jul 08, 2008 | Cobra 19 DX IV CB Radio

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My radio off frequency


is this set AM and the recievers FM? if so there will be no way round the 'problem' BOB

Jan 09, 2007 | Cobra 19 DX IV CB Radio

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