[TowerTalk] Antenna Interactions

David Robbins K1TTT k1ttt at arrl.net
Sun Feb 25 12:10:21 EST 2007


Personally I would put the 40m under whatever else you want to put up.  They
sag quite a bit, especially if you get any ice.  And they need a boom brace
attached to the mast.  If they are the bottom antenna you can put more
antennas above their boom brace, otherwise you need to have a longer mast
just to attach the boom brace.


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

> -----Original Message-----
> From: towertalk-bounces at contesting.com [mailto:towertalk-
> bounces at contesting.com] On Behalf Of jcowens1 at comcast.net
> Sent: Sunday, February 25, 2007 16:57
> To: Towertalk
> Subject: [TowerTalk] Antenna Interactions
> 
> What antenna considerations are appropriate when having a 2 el 40M beam
> (Cushcraft shorty 40) and any other antenna below it (20M mono, 15M mono,
> TH-11, etc.). Which might interract and what kind of separation is
> appropriate?
> 
> John Owens - N7TK
> _______________________________________________
> 
> 
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