You will get slightly more gain with a reflector.
Tuning a vertical array is easy. Install a sample vertical antenna about
100 feet away, decouple both antennas from their feed lines and connect your
receiver to your vertical dipole and a signal source with a fixed output
level to your sample antenna. Use S meter lite on your receiver and sweep
the frequency of interest and log the AGC voltage to establish normalized
levels.
Then install the parasitic element and sweep the frequencies again and that
will tell you what frequency maximum gain occurs.
Adjust the length of the parasitic element to place maximum gain at your
desired operating frequency.
Allow about a weeks time for optimizing your array.
Been there, done that.
de Paul, W8AEF
ZF2JI/ZF2TA FO8DX/FO8PLA 8Q7AA ZX0A VU7RG TX5C A52PP
-----Original Message-----
From: Tom Osborne
Sent: Thursday, May 17, 2012 6:31 PM
To: Towertalk
Subject: Re: [TowerTalk] 2 el yagi question
Hi Mike
I have a 40 meter vertical dipole here and am trying to decide whether
to put a director in front or a reflector in the back. 73
Tom W7WHY
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