-----Original Message-----
From: Jiøí ?anda [mailto:jirka@jimaz.cz]
Sent: Monday, January 22, 2001 2:49 PM
To: Pete Smith
Subject: RE: [TowerTalk] precipitation static & folded verticals
Hi,
not exactly true. My observation:
20m - two Yagis on two towers - one @52m the other @24m. The "static" is
always worse on the high one. Here I agree with Tom. Sometimes it helps to
listen on 20m on 2 el. 80m delta loop made of insulated wire - and quite
often it is quiter than the low Yagi - but sometimes it is much noisier than
the low Yagi - the loop's apex is below the low Yagi !. !?!?!?
73 !
Jiri OK1RI
-----Original Message-----
From: owner-towertalk@contesting.com
[mailto:owner-towertalk@contesting.com]On Behalf Of Pete Smith
Sent: Monday, January 22, 2001 5:28 AM
To: Towertalk; Topband
Subject: Re: [TowerTalk] precipitation static & folded verticals
At 07:41 AM 1/22/01 -0500, Tom Rauch wrote:
...
>Precipitation static is caused by corona discharges from the
>antenna or from other structures near the antenna. Corona is a
>function of voltage gradient between the antenna and charged
>clouds or "stuff" floating in the air....
>and perhaps covering the antenna with a dielectric at
>points where corona is forming will often help.
Interesting! Should I infer from this that it would probably be good
practice to form the ends of wire dipoles into smoothly curved loops and
perhaps also used insulated wire, in the interest of lower precip static?
73, Pete N4ZR
Contesting is!
The World Contest Station Database
is waiting for your input at
http://www.qsl.net/n4zr
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