Re: Why does my cobra 142 gtl make a huming soun when...
Disconnect your internal speaker and see if it helps. Its a poor power supply filtering problem and it effects the speakerin many ways.check to see if it hums with only the external speaker attached.
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cobra 5 pin to 4 pin adapter on ebay around $5.00
http://www.ebay.com/itm/WORKMAN-C4P5C-CB-RADIO-MICROPHONE-ADAPTER-5-Pin-COBRA-TO-4-Pin-COBRA-/121655850211?hash=item1c5340f4e3:g:e0AAAOxy2YtRsJ8n
Hi, my name is John. Welcome to FixYa. Make sure that you are getting power to your unit by running the wire to the battery, hot (+) and ground (-), let me know if you still have no power and I will post solution here. Thanks for choosing FixYa....John
If it is a 142 GTL your A.M. power is VR6 . Good luck and be carefull and DON'T get carried away remember AT YOUR OWN RISK NO LIFE GAURD ON DUTY!!!! You should'nt have any problems though......Dan
Are you sure that you're on the AM mode? It sounds more like you're on LSB or USB. If you are on AM, the problem may be the power control (VR6) inside the radio.
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