GAIN for a 2 element Reflector array peaks at 0.15 WL
(wavelength) spacing. That comes to 10 ft on 20M.
I once had a 2L 40M Delta Loop suspended from a 20 ft boom
at 120 ft. KILLER Antenna !
Tom N4KG
On Mon, 22 Jul 2002 20:24:35 -0500 "Larry Crim" <k4ab@msn.com> writes:
>
>
> ----- Original Message -----
> From: Hoeft, Roger V
> Sent: Monday, July 22, 2002 15:47
> To: SECC
> Subject: [SECC] How do I know if this thing REALLY works
>
> Folks,
>
> I recently got a wild hair up my rectifier and came up with a
> hair-brained idea to add an element to my 20M delta loop. I got the
> thing up for a while Saturday, but I really don't know if I have
> gained anything besides that "look" from the XYL. You know that
> "look." You've seen it - you've earned it, too!
>
> Anyway, being the cheap, thrifty, frugal op that I am (all wires at
> the QTH), is there any on-air or poor man's test that can be
> performed to check if I am getting the expected performance gain? I
> did get an on-air SWR of about 1.6:1, but I already had that with
> the single element. Electrically, I'm spacing the elements 3/8 wave
> apart and the feedpoint is about 30 feet up. Any suggestions would
> be greatly appreciated. If this doesn't work, I'm only out $20 in
> PVC and dowel rods, so it's no great loss.
>
> Thanks es 73,
>
> Roger ...
> KA9EKJ
>
> _______________________________________________
> SECC mailing list
> SECC@contesting.com
> http://lists.contesting.com/mailman/listinfo/secc
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