[TowerTalk] Adding reflector to 40-meter vertical

Gene Fuller w2lu at rochester.rr.com
Sat Feb 12 08:55:54 PST 2011


Hi Dick -

If "easy"is important, it might be easier to just put up a parasitiec 
reflector.  Resonate at 6.7-6.8 MHZ  and place about 25 feet behind your 
present vertical.  It will affect your SWR but if your Xmtr will tune ok and 
your feed line isn't too long ( lossy) you should be good to go. Without a 
lot of fuss your gain and f/b should be about the same as driven two 
element.

Gene / W2LU


----- Original Message ----- 
From: <RLVZ at aol.com>
To: <towertalk at contesting.com>
Sent: Saturday, February 12, 2011 11:25 AM
Subject: [TowerTalk] Adding reflector to 40-meter vertical


> Hi Guys,
>
> I've got a ground mounted 1/4 wave 40-meter vertical located at the  edge
> of a saltwater river.  Before sunset tonight, I want to add a 1/4 wave
> reflector behind it to add a little more gain towards Europe.  (a fun 
> little
> experiment)  I'm only looking for one direction with this antenna: 
> towards
> Europe... so I'll be end firing it NE with the reflector to the SW  of the
> driven element.
>
> A couple quick questions:
>
> 1) Should I locate the reflector 1/4 wave (33') behind the driven element
> or is there a better distance to use for a simple and quick setup?
>
> 2) I'm looking for the simplest method of feeding these antennas as I have
> limited parts at this temporary location: a T-connector and  coax!  Would
> the use of a UHF T-Connector and  then individual feedlines to each of the 
> 2
> verticals be the quickest  way to connect them?  If so, any 
> recommendations
> for feedline  lengths?
>
> Thanks!
>
> Dick- K9OM/4
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