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Must CB Antenna mount be grounded ?

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Old 06-03-2011, 10:09 AM   #1
Rellik01 [OP] Rellik01 is offline
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Must CB Antenna mount be grounded ?

Plan on installing antenna mount to bed or bed rail must the mount be grounded?
Thanks as always.
Craig
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Old 06-03-2011, 10:16 AM   #2
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Quote:
Originally Posted by Rellik01 View Post
Plan on installing antenna mount to bed or bed rail must the mount be grounded?
Thanks as always.
Craig
Yes, SWR will be through the roof and may damage your radio if you don't, not to mention you wont get out at all.
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Old 06-03-2011, 10:41 AM   #3
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An antenna that needs a ground plane is going to be a pretty poor performer on a composite bed. You need more than just a DC ground for good antenna performance -- it needs to be over a decent counterpoise, generally a (horizontal/perpendicular) body panel. That's why center roof mount is almost always ideal.
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Old 06-04-2011, 12:31 AM   #4
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If i understand correctly. I can mount in bed but I must wire the mount to ground. I also understabd that TX/RX will not be optimum. Does this kind of cover it?
Thank
Craig
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Old 06-04-2011, 02:28 AM   #5
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Quote:
Originally Posted by Rellik01 View Post
If i understand correctly. I can mount in bed but I must wire the mount to ground. I also understabd that TX/RX will not be optimum. Does this kind of cover it?
Thank
Craig
If you're going to do that, I'd run BRAID down to the frame. Not ideal, but provides a better RF ground than solid or stranded wire. I really don't know how effective the antenna will be, but that's better than nothing.

I toyed with the idea of running braid under the bed in a grid pattern to provide an artificial counterpoise (to use a 5/8 wave VHF antenna back there) but decided it wasn't worth the trouble. I'll mount on a body seam up front, on the roof, or use a 1/2 wave.
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