G'day Doug, Jerry and all,
I was very interested to see that the close spacing of 6" to 12" apparently
(i.e. modelled on EZNEC) caused less interaction with parallel-fed
inverted-Ls than spacing them 3' to 10'.
For the last two years, I have used paralled-fed inverted vee dipoles on
topband and 7 MHz at 90'. The dipoles are spaced a mere 3", using the
excellent clip-on open wire spacers sold by WH Westlake in the UK. Both
dipoles perform well.
In the next few months, I plan to place a full-size 3.5MHz wire vertical in
parallel with a topband t-antenna/or inverted-L antenna with an 80'
vertical section (am currently in the process of burying about 50 radials)
and was wondering about simply using the same 3" spacers. Can I get away
with 3" spacing on 160/80, I wonder?
Vy 73,
Steve, VK6VZ
--
FAQ on WWW: http://www.contesting.com/FAQ/topband
Submissions: topband@contesting.com
Administrative requests: topband-REQUEST@contesting.com
Problems: owner-topband@contesting.com
|