[Antennas] extended zepp
Fortra
fortra at siol.net
Thu Jan 12 16:36:35 EST 2006
Hi Brad,
what is the length of extended Zep?? Is it cut as "extended" on 80 mtrs or
40 meters?? What is the distance of ladder line from the tower??
There was a web site, where ( could not recall his name or call probably
Cecile??) who get resonant antena on every frequency by switching in and out
portions of ladder line. Check it!
Regards,
Nermin S58DX
p.s.we did use extended zepp's of 280 feets and 347 feets on all bands from
160-10 meters. Whew that was heavy antenna and it brought some exotic DX on
160!
----- Original Message -----
From: "UVCM INC" <uvc1 at verizon.net>
To: <Antennas at mailman.qth.net>
Sent: Thursday, January 12, 2006 7:20 PM
Subject: [Antennas] extended zepp
> Need some advice
> I put up a double extended zepp on a 60 foot tower and each end is
> attached
> to a 30 foot pole.
> Our ground is clay, sand and rock, we are 5000 foot above sea level, no
> trees,
> I am running appx 135 feet of ladder line.
> power levels between 400 and 1000 watts.
>
> I cant get a good swr, on 75m, between 2.5 and 3:1, and not good on the
> other bands, but better on 20m.
>
> If I only hook up one lead of the ladder line to the match box (Johnson
> kilowatt) I can get a flat match, but RF everywhere.
>
> I changed the length of the ladder line by over 6 feet no change
> I changed the length of the zepp by 20 feet on each end, little change.
> I am puzzled.
> Thanks
> Brad
> KB7FQR
>
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