[TowerTalk] verticals in woods vs. in a field
John Kiesel
yamaha_xs_johnny at yahoo.com
Thu Sep 16 04:49:18 EDT 2004
Ummm! Being in the Pacific North West with all those
Massive trees around here...Ummm!!
Let me tell you that if it starts Raining..Your
predictions go out the door! Nails and other
paraphenalia go out to.. Only thing I'm looking for is
cover!!
The rain impact of nearby trees will cause a detuning,
if not a degredation of Antenna properties.
I have seen Verticals near Large Fir Trees become
useless in the rain.. SWR was 1 to 1 before the
rain..
then SWR 10 to 1 after precipitation...
I'm no Scientist, but these are the facts.. I've
seen it time and time again..
Love to work you Jon on 6 meters!!
Johnny KE7V
--- Jon Zaimes AA1K <jz73 at verizon.net> wrote:
> Rich,
>
> My 100-foot, Rohn 25, series-fed vertical for 160
> meters (with parasitic radiators) sits amid a grove
> of about 25 loblolly pines. They are about 50 feet
> high. Beyond them is some yard area, 30- to 100-feet
> wide, then a mixed woods of pines and hardwoods,
> typically 70-80 feet tall. There are hundreds of
> radials on the ground.
>
> My two other 100-foot towers (and a fourth going up
> now) sit in small clearings in the 70- to
> 80-foot-tall trees.
>
> I seem to get out OK. Haven't noticed any seasonal
> changes in SWR. The Beverages also go through the
> woods and seem to work fine.
>
> Pix on my web site will give you an idea of the
> setting: www.aa1k.us. Love my trees!
>
> 73/Jon AA1K
> Delaware
>
>
> _______________________________________________
>
> See: http://www.mscomputer.com for "Self Supporting
> Towers", "Wireless Weather Stations", and lot's
> more. Call Toll Free, 1-800-333-9041 with any
> questions and ask for Sherman, W2FLA.
>
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