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TopBand: Elevated Radials

To: <topband@contesting.com>
Subject: TopBand: Elevated Radials
From: CQK8DO@aol.com (CQ K8DO)
Date: Thu, 19 Mar 1998 11:43:27 EST
In a message dated 98-03-18 23:15:01 EST, you write:

<< Not on 160-!!!!   This myth about lower - lowest angle being better for DX
is
 "propagated" from higher bands - it is mostly true on 20m and up, but not on
 40 and below. The lower you get on frequency, the HIGHER prevailing angles of
 propagation get!!   Get off this stuff on low angle. ANTENNA HAS TO FIT
 prevailing MODES OF PROPAGATION!!!!  
  >>

Ummm, sorry but the inference that any old dipole, etc. will outplay a
vertical system on 160 is incorrect....  Before I went to the expense and
trouble of a large vertical array I spent several weeks with an inverted vee
for 160 meters - 150 foot at the apex and 50 to 60 feet at the ends, comparing
it to a single sloping vertical with two elevated and loaded 1/8wl radials,
and the top of that antenna about 115 feet... There was no comparison on DX
signals, i.e. greater than 2000 miles... The leaning vertical had the edge on
signal strength 99% of the time... 
Now, there were times when the S/N ratio on receive was better on the inverted
vee, but even that was a minimum number of times and is another topic
entirely... 
And the vertical was surprisingly effective on domestic sigs, except for the
stations inside of a 750 miles... There the vee really struts its stuff
putting the S-meter right on the pin....

SInce putting up my 160 array I even went to the trouble of pulling the vee
back up a couple of times to reconfirm my findings.. The switchable array
hears dx sigs comfortably above the noise -  signals that don't even exist on
the vee...

This may be subjective science, but I'm convinced... In using EzNec to confirm
my empiric findings, a horizontal antenna has to be well over 300 feet before
it begins to compete ( which is out of the question for me)....

Denny

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