[TowerTalk] 80 meter Delta Loop on 40

[Bob K6UJ]

I had a full size delta loop for 80 which worked  well on 80 DX.    I changed the feed point from the bottom corner to 1/4w down from the apex and 
it worked extremely well for 80 dx, very noticeable improvement with the new optimum feed point.  I fed with balanced ladder line and also used it on 40 meters.
It would not out perform a full size 40 vertical dipole I had strung up however for DX.  I suspect as a 2 wavelength loop on 40 the radiation angle was changed (for the worse)
My two cents.
Bob
K6UJ




On Oct 11, 2012, at 3:12 PM, rfman45 wrote:

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> Once again the helpful hams on TT have come through with assistance for this OT. I generally just lurk here and read the postings but from time to time I need some light shed on a problem.
> 
> I was aware that the method of feeding a Delta affects the way it works but I completely missed the mark concerning its use on bands other than the one for which it was designed so I'm going back to the drawing board.
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> I'm in the middle of a project for work today but I will respond to each of you who were kind enough to offer assistance in the best tradition of ham radio.
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> TU to all of you!
> 
>                                                                   Mike  W2LO
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