[Antennas] CB to 10M ground plane

[David Robbins]

If its just a basic ground plane put it together the way it was and start trimming ... if its 1/4 wave elements you'll end up taking off about 7-8" or so.  I would cut 4", measure again, then trim in smaller pieces to get where you want it in the band.

David Robbins K1TTT
e-mail: mailto:k1ttt at arrl.net
web: http://wiki.k1ttt.net
AR-Cluster node: 145.69MHz or telnet://k1ttt.net:7373



-----Original Message-----
From: antennas-bounces at mailman.qth.net [mailto:antennas-bounces at mailman.qth.net] On Behalf Of Larry
Sent: Tuesday, February 27, 2018 18:06
To: antennas at mailman.qth.net
Subject: [Antennas] CB to 10M ground plane

Just yesterday i removed a quite good 11 meter ground plane antenna from a deceased citizen's residence.  I'd like to convert it for 10M use. Of course there was no documentation and no mfgr info on it anyplace as it had been standing on the pipe support for some years and there was no one of knowledge at the residence when i removed it.


I'm sure others have converted them, shouldn't be to hard to do i wouldn't think.  If one shortens the vertical portion of the antenna, is it necessary to cut the 3 radials down as well.  I'd think so but do not want to cut things off if it's not a necessity.  The bolts holding the radials sheered off when i tried to loosen them and it was a bit difficult to get the antenna sections apart but i was able to do so with minimal damage.  Now for some info or directions as to where to look for the information to properly dimension this thing then i can get it up and in use.


Thanks

Larry
W0OGH

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