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Transmit Problems

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megargel53

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Feb 23, 2010
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Hutchinson, KS
Installed a low end Cobra CB radio for a friend(like I have done 100's of times) and he is getting reports of distorted transmissions. Like as if he is talking over 2 channels at once. We believe the antenna is grounding itself out. Also, the CB will still power on even if the radio itself is not grounded. It was a pretty standard installation. The antennas are mounted to the bed of his pickup about 5 inches from the cab. He has dual antennas but only one is connected to the radio. Needing some advice as what to look for to resolve this issue and possibly get him better transmit distance.
 
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Unplug the coax from the radio, take the coax and use a multimeter to measure the resistance across the center conductor and ground. If it reads 0, or anything less than infinity, there is a short. If there is a short, unscrew the antenna and try again. If you get 0 the short is in the mount or coax. If infinity, the short is in the antenna.


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megargel53

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Joined
Feb 23, 2010
Messages
2
Location
Hutchinson, KS
OK. What do I set the multimeter on to check this. I have never ran into this issue before so this is a little out of my league. I'll get a picture of my multimeter so maybe you can tell me a little more accurately.
 
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