Use open wire line to produce linear loading for 1.8 on the
horizontal portion of the L.
-----Original Message-----
From: topband-bounces@contesting.com
[mailto:topband-bounces@contesting.com]On Behalf Of Thomas Giella KN4LF
Sent: Saturday, December 20, 2003 21:24
To: a Topband eList
Subject: Topband: 80 Meter L on 160 Meters
Ron W9MAF Asked:
.....If I install a full-size 1/4 wave 80 meter
vertical and also use it for a 160 meter inverted-L, with 120 radials each
40
meters long to solve the near field ground loss problem, will this antenna
be
a useful DX antenna on both of these bands with very poor soil or will it
be nothing more than an "air-cooled dummy load" as one person suggested.....
Thomas KN4LF Says:
You will have to add a coil or some sort of top hat wire capacitive loading
for the proper electrical length for self resonance and also to see a higher
radiation resistance and best transmit efficiency.
73 & Happy Holidays,
Thomas F. Giella, KN4LF
Plant City, FL, USA
EL87WX
Yaesu FT-840 & PSK31 Digital Mode E Group
http://groups.yahoo.com/group/yaesu_ft840
160 Meter Amateur Radio Resources & More http://www.kn4lf.com/kn4lf.htm
Daily Solar Space Weather & Geomagnetic Data Archive
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