Question about Midland 79-290 120-Channels Base CB Radio

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Nautico 1 keeps going to channel "1a"

Even if another channel is "locked" in, it goes back to 1a when the transmit button is hit. any ideas?

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Found out it was a low battery. We had charged it for several hours, but it was apparently low. It is supposed to show the low battery symbol, but it never did. We put it new AA batteries instead of the power pack and it worked just fine. Thanks

Posted on Jan 26, 2009

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I can transmit & receive all channels but when i try to transmit on 40 i get a loud pitch on speaker


Sounds like the VCO is out of range on the high end of the frequency range which causes the synthesizer to go out of lock on channel 40. If you tweak the VCO coil slightly it might lock again. Make sure it still works on channel 1 after you have tweaked the VCO coil.

Oct 02, 2014 | Uniden Radio Communications

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Cobra 29 now Ltd classic Cobra 29 nw.ltd classic receives not well but does not transmit don't even move the swr./power meter any ideas


High SWR on antenna system.. may have mess up your RF final transistors. if you were talking on it for a long time. have someone check the SWR on the antenna system... should be a FREE service.

Jul 13, 2014 | Radio Communications

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Need wiring help for Galaxy 959 Cb Mic


1) shield / ground 2) yellow/ audio 3) red / transmit 4) white / receive

Mar 17, 2013 | Galaxy Radios 959 40 Channel Am/ssb Radio

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I have a galaxy 2547 and it is stuck on freq 27.850 is there a controler board or something that good have shorted out?


There is a board inside that Galaxy radio called a PCB board. When they go bad they freeze on the frequency they are on. Replace that board and this should take care of the problem. I trust Maycomm Communications for all my Galaxy repair parts needs. http://maycomcomm.com/

Mar 10, 2011 | Galaxy Radios DX-2547 40-Channels Base CB...

1 Answer

Stops working when I try to transmit.


problem may be the button loose connection to the main board...we can fix these radios. cb shop temple, tx on yahoo search. The button is connected in so it controls both sections.

Aug 03, 2009 | Cobra 75 WX ST 40-Channels Handheld CB...

1 Answer

It transmits off frequency is there a adjustment and also the frequency counter goes crazy at times


To add 10Khz to your transmit frequency:

FIXED/OFF/+10KHz SWITCH:
The left position puts the radio on
one of the three fixed channels that is selected by the channel switch
(6,19, or 21). This over-rides the channel selected by the 40 channel
knob. The right position adds 10KHz to whatever frequency you are ON.
In the middle, both features are OFF.

Otherwise, a radio tech would be able to retune the frequency inside the radio.

After adding 10KHz to your frequency, use the SWR control to check the SWR of your antenna.
Here's how:
SWR CAL CONTROL: Normally this switch is set to “PO”. Then,
during transmission, the meter indicates output power. To read SWR,
rotate this knob during transmission until the needle moves to the “SET”
point on the SWR scale. Then, while still transmitting, set the R.B./SWR
switch to SWR.

Ideal SWR is 1 but you'll want to be as near one as possible. An SWR of 1.6 or greater will make ineffective use of your antenna.
If in doubt, a radio tech has the required meters and tools to adjust the SWR/Tuning of your antenna.

May 10, 2009 | Galaxy Radios DX-73V 40-Channels Base CB...

1 Answer

Cobra 29 NW LTD CLASSIC NIGHTWATCH


Dear RobertTx,

Sounds like you may have a leaky or shorted capacitor somewhere in the power circuits, or a defective transistor in the same circuits since it affects both the transmitter and receiver.
Common problems with receive and transmit intermittance can also be the antenna or its connections. The fact that it goes away if the radio is turned off, then on again after a short time points to something common in the power supply section. Unless you have test equipment and a working knowledge of electronics it will be difficult for you to troubleshoot on your own.

Jules

Oct 21, 2008 | Cobra 29 WX NW ST 40-Channels Base CB...

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

1 Answer

Cant hear


Several things can cause poor reception. I have a few questions for you.

1. Have you tried measuring your SWR (standing wave ratio)? This helps give you an idea how well your transmission line and antenna are working.
2. Is this radio being used as a base or mobile? Do you have proper grounding on the antenna?
3. Pressing the mic button and seeing the radio indicate "transmit" does not always mean you are transmitting at full rated power. Have you tried transmitting through a wattmetter into a dummy load?
4. If the transmission line is good and the antenna is good, then I would suspect that something may be wrond with the receiver's front-end (sensitivity).

Receiver sensitivity can be checked by using a RF signal generator. Unfortunately you'll have to take the unit to a repair shop to have that checked. Try the other things I mentioned above. Let me know what you find and we'll go from there.

Good luck,

- Jim

Jan 28, 2008 | Midland 1001Z 40-Channels Base CB Radio

1 Answer

Lost channels in a galaxy 66v cb radio


as far as the transmit frequency changing while you have the mic keyed this is normal, the transmit frequency is a little different than the receive, as far as the lost channels go you need to check the galaxy website and check to see if thier is any fixes listed. if none is listed then you can send the tech's a e-mail and tell them your problem and they will advise you on what to do.

Aug 15, 2007 | Galaxy Radios DX-66V Base CB Radio

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