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Cobra cb radio, model 75 wx st, has loud and clear weather radio transmissions but receiver is weak and has loud scratchy pops. Transmitter is unknown as no one has ever answered a call for radio check. Dealer checked antenna and said insulation was packed around base of antenna -- they cleared that but still poor reception.

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You didn't actually have a "category" for CB radio so I picked the closest thing to it but in no way does it resemble a speaker and sub woofer problem. I did not continue with the query because the CB is in an RV and not colocated with the computer and I decided there was no way for you to diagnose the problem without me knowing more about the system installation. I need to get the RV in to someone who knows CB radios.

Posted on Aug 21, 2008

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The weather channels quit working on my cobra 29 nightwatch.


its an internal problem , take it to a tech and let them fix it. the board for the wx probably has jumped freq. and thats why you can't receive wx.

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With my cobra 29 wx nw st I can not pick up any weather channels. I have the k30 antenna. Do I need a dual band antenna?


Do you hear static when you turn on weather? If so there are just none in range of you. There are not weather radio stations everywhere. You would not use a dual band antenna on any CB. Only an antenna designed for the 11 meter band. Which is the 27mhz CB radio band.

You can go here and see if you have NOAA All hazards weather radio coverage in your area.

If the CB radio is working otherwise it is most likely that there is just not a NOAA transmitter near you.

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Cb transmit noise


Its just RF feed back, that's normal, try to re-route the coax, or just turn the FM down, o try turning your modulation down....hope this was helpful....

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My 18 WX ST Cobra CB radio will allow me to receive sound from the 3 weather stations it has on it, but I cannot pick up sound from other CB radios. help please?


get an swr meter and check your antenna first. if good problem may be in the circuit board.. they are famous for loose IF, TX mixer boards. or call us

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Cobra 75 wx st everything seems to work eccept receiving signal meter will spike on trx and it seems to receive but no sound there is sound in wx mode


WX is for weather. If you put it on WX, and you do not hear anything, then you need to change the weather station it is on. in wx mode, you change weather channels by pressing channel up and down. To communicate with 2 way, press the cb/wx button so it is on CB mode.

Sep 28, 2009 | Cobra 75 WX ST 40-Channels Handheld CB...

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Weather bleads Over on 21 LTD WX CLASSIC(*HELP*)


sounds like your wx receiver is being activated by a bad switch replace the switch to disable the wx when you dont want it to come thru

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Cobra 75 WX ST 40-Channels Handheld CB Radio manual/antenna


Hi - You can download the manual from the link underlined in blue below:

75 WX ST

Other info here.

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Please take a moment to rate this solution & let us know if the information given was useful to you - Good Luck!

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Aug 31, 2008 | Cobra 75 WX ST 40-Channels Handheld CB...

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