Topband: FW: Hi-Z Around Trees

Mike Smith VE9AA ve9aa at nbnet.nb.ca
Mon Nov 14 19:04:08 EST 2016


I don't have a HI-Z, but I do have many antennas in the trees here. (and
have in the past at other locations too)

Recently, I have installed all wire & rope 4-squares on 40 & 80 and a 2-el
on 160m, all in and in some cases attached to or gently touching,

(gasp!)(wait for it.....) dunh dunh dunh..TREES !)

 

Worse yet, the 80m/160m arrays are partially nested and the 40m one is
partially nested in the corner of the 80m one.(maybe that's a separate
thread)

 

I posted my results here in 2 separate posts some weeks back, so I won't
repeat the data, except to say the only non-scientific anomaly's I see are
when the 80m array is aimed to the NW through some metal clutter and 2 sheds
(full of wiring and metal).

 

I used trees and did some nesting of arrays nothing bad happened like the
naysayers warned.

 

Would I get 1dB more gain and 2dB more F/B if they were aluminum verticals
out in the middle of a 40acre field?  Probably.

 

I used what I had.

 

I'd worry more about a nearby house, a utility pole full of wires, your
neighbours 18-wheeler, anything large and metallic than I would the harmless
but helpful tree.

 

Mike VE9AA

 

Mike, Coreen & Corey

Keswick Ridge, NB

 



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