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stealth
04-10-2014, 06:29 PM
i have this ground plane antenna similar to this ...

http://www.interfacebus.com/ground-plane-antenna.jpg

turns out the antenna is 20 meter .

now my question is , if i remove the steel whip and replace it with a 102' whip will i have changed the antenna to 11 meter ?

have a laugh , i understand :300 (213): can i use copper instead of steel ? i appreciate your help , thanks

stang
04-10-2014, 08:36 PM
Wish I knew but I expect you know a LOT more about this stuff than I do. You could try it and see I guess just be quick when keying down to test.

Good luck

BOOTY MONSTER
04-10-2014, 09:01 PM
you will need 1/4 wave length ground elements for a 1/4 wave vertical . that's 108 inches on the CB band .

stealth
04-10-2014, 09:14 PM
you will need 1/4 wave length ground elements for a 1/4 wave vertical . that's 108 inches on the CB band .

could i just add a chunk of steel sheeting or would it have to be 108x108 ?

222DBFL
04-10-2014, 10:35 PM
No he means the 4 ground plane rods need to be 108" as well as the top whip section I would suppose. It might be easier to just buy a new antenna. You may be able to fab it up to work, booty monster what is the best way to go about this in your opinion??