Topband: Vertical question

Peter Schrader vk4tgv at rumpleteazer.net
Thu Sep 4 23:29:36 EDT 2008


Hello all,
Forgive me if this sounds like a silly suggestion, I have been a long 
time lurker on this list.  I am slowly building up my Topband capability 
which is somewhat of a challenge on a 400 square metre suburban housing 
block in the suburbs.

I have put up a vertical, about 18 metre long, with plenty of radials 
and am feeding it with 450 ohm window ladder line, at the house wall 
there is a current balun, and from there about 2 metres of RG213 to a 
MFJ949 tuner.

Has anybody on this list had experience with using open wire type 
feeders with verticals?  All of the literature on verticals refer almost 
exclusively to coax feeds.

The main issue I have is limited room, in that a 1/4w 160 m transmitting 
antenna is out of the question, and I want to use it for 80m as well, 
but avoid lossy trap arrangements.

-- 
Cheers and 73,
Peter Schrader
VK4TGV

Vice-president,
Redcliffe and Districts Radio Club
http://www.redclifferadioclub.org.au


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