Question about Cobra 148 GTL 120-Channels Base CB Radio

1 Answer

Transmits off frequency

Brand new in the box, at less than 1.2 to 1 this radio on side band is 6 minutes past centre. poor signal and poor reception. I would not advise anyone to buy this radio. Maked a decent doorstop. Brad Greenaway, canada

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  • Cobra Master
  • 1,795 Answers

Did you put it on a frequency counter? they can be set back on freq. if you know how to set it. how old is it? I would send it back to where I got it and have them fix the problem.

Posted on Nov 25, 2014

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SOURCE: 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

Posted on Jul 17, 2008

  • 36 Answers

SOURCE: have a new cobra 148 gtl took out of box no transmit or recieve

make sure that your [swr] hadn't changed or went higher than a 1.5, anything higher will interfere with your tranmitting an recieving. other than that with out being there to see an hear your radio this would be the first place to start.

Posted on May 05, 2009

  • 773 Answers

SOURCE: Radio will

If the radio is not transmitting, then there is something wrong with either the final transmit transistor, or antenna system.

Have you ever checked the SWR on the antenna? If it was high, over 2, or you never have, you may have burned out the final.

In that case the radio will need a tech.

Its possible there is something wrong either with the antenna or feed line. But then you would still get some RF, and you would see the ant light on, which is an indicator of a BAD swr, and potential danger to the radio's final.

Posted on Jan 27, 2010

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Hi Trevor,

The Midland radio you have is NOT capable of FM transmit & receive. It is a Citizen's Band radio that operates on channels 1 thru 40 that are assigned to the 26.965-27.405 MHz frequency range. These are the standard 40 Ch CB frequencies in the U.S. (and may not be legal for use in other parts of the world without a license from your country's communications authorities). It also offers Weather Band reception - again these are US frequencies that may or may not even be used at all in the UK. Since the radio only displays a channel number, you don't actually know the frequency you're monitoring or transmitting on. Your friends on CH 5 may be in a completely different band.

Even if they are on the same frequency, the fact that they are operating in FM mode means that you would hear something - but it may not be intelligible - and the same would be for them listening to you transmit in AM mode. If you could have them switch their radio to AM, all would be fine. I suspect they use FM as there is much less static when compared to AM.

If they won't change to FM, you'll either have to stop trying to talk to them or buy a radio capable of FM (and make sure it has the same frequencies as theirs!).

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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.

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There is very little you can do about this. You may not like that answer, and I am sorry for the trouble, but there are things you can try.

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2. Change the frequency of the router to level 1. Usually they are AUTO or level 6. Level 1 is a low frequency, and lower frequencies usually give slower, but more reliable performance. You can choose between 1 and 11. try all frequencies to see which one gives less trouble.

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4. upgrade your wifi. Choose the wireless N router and adapters for your machines. they have better capabilities and less interference.

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