Question about Cobra 25 LTD 40-Channels Base CB Radio
When I go down the road I can hardly hear anything. I run new wire from mirror to mirror up to the antennas to the cb nothing worked I got one new antenna.
The easiest way to check this is to hook an SWR meter to the antenna to see if the cables are ok. If the SWR is low then it would show no problems in the transmit and therefore the receive would be good.
Posted on Mar 03, 2014
Hi - You can download the manual from the link underlined in blue below:
75 WX ST
Other info here.
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Posted on Aug 31, 2008
SOURCE: Static and Recieving Problem
Even though cobra recomended this enteana for this radio does'nt excuse the fact that you definetlly need to check and adjust the (swr) standing wave ratio. I would also suggest you placing the enteana at the highest point in the center of the roof. Check the (swr) with an external meter not the one in the radio, and adjust the enteana accordinglly. SWR readings higher than 3.0 can damage your finals and have adverse effects on your receive capabilites.
Posted on Jan 18, 2009
SOURCE: transmitting and receiving
RF gain should be all the way up. Turn the squelch all the way down. Turn the ANL/NB to just ANL.
Turn the dynamic up at least 3/4.
Once you have confirm you can receive and transmit, then you can turn up the squelch up until white noise just stops.
Make sure you are on 19 by the highway. Key up and say break break one nine, can some one give me a radio check please.
you should get a response.
Your RF gain is how much you receive. the higher it is the more you receive. In normal operation there is no need for it ever to be less the all the way on.
Squelch is just to knock out fuzz, and if you only want to hear people close not far. A little less then half way is a basic setting.
the ANL switch is the automatic noise limiter. if you have interference from your vehicle, like engine noise, turning this on will quiet that. If it is extreme engine noise then switch it to NB, noise blanker. It is just a more intense setting.
your dynamic is how loud your audio is. if its low or all the way down, you will not transmit audio loud enough for people to hear. If its a stock radio and has not been tuned, if you turn it all the way up, that is fine.
Posted on Oct 01, 2009
The red light is a warning of antenna mismatch; when you hold the antenna, you are changing the match between the CB's output amplifier and the antenna. Try it with a different antenna or pick up a 'test light' (or test load) for CBs from an electronics dealer, I've also seen them with CB accessories at truck stops. If the test light fires off and the red light on the CB is dark, the antenna you have is junk.
Posted on Aug 01, 2010
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