[TowerTalk] Vertical placement?

[Grant Saviers]

Steve,

A roof mount also has the advantage of less coupling/blocking/absorption 
by nearby structures and objects.  The challenges are the band matching 
of elevated radials.  If the attic is accessible, stringing 4 inside for 
each band is ++.  A 1/4" bolt is an easy to waterproof feedthru.  Guys 
can be attached thru facing to avoid more roof penetrations.  Did this 
many years ago for a Mosley RV4 40>10.  Downward sloping radials also 
raise the feedpoint Z closer to 50 ohms.  This can be modeled.  My best 
ever vertical was on a galvanized steel barn roof.

Grant KZ1W

On 11/12/2020 08:30, k7lxc--- via TowerTalk wrote:
> Howdy, TowerTalkians -
>       Which would be a better solution - mounting an all-band trap vertical on the ground with assorted radials or on the roof of a 1 story house with assorted radials? I'm leaning to the roof mount since then the radials are mostly out of the way of ground traffic. Tnx!
>   Cheers,Steve     K7LXC
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