[TowerTalk] 80 Meter Delta Loop

[Peter Chamalian]

I do the very same thing except I use open wire feeders and a tuner.

Pete, W1RM

-----Original Message-----
From: Dick Green [mailto:dick at mailgreen.us] 
Sent: Thursday, October 11, 2012 2:07 PM
To: Dennis W0JX; towertalk at contesting.com
Subject: Re: [TowerTalk] 80 Meter Delta Loop

I feed my 75'-high right-angle 80m delta loop 1/4 wave from the apex, which
puts it about 12.5 feet up one side from one of the lower corners. I get a
decent match, but have added a 1/4-wave 75-ohm coax stub for matching to the
50-ohm feed line. Works very well.

73, Dick WC1M

> -----Original Message-----
> From: Dennis W0JX [mailto:w0jx at yahoo.com]
> Sent: Thursday, October 11, 2012 11:20 AM
> To: towertalk at contesting.com
> Subject: [TowerTalk] 80 Meter Delta Loop
> 
> When a delta loop is designed for a particular band, and fed in the 
> corner, it is not in an optimum configuration. They should be fed 1/4 
> wave length from the apex and then will act as a pair of phased 
> verticals. See ON4UN's Top Band DXing book for a complete description 
> or W4RNL's excellent series on this type of antenna. The loop can also 
> be fed at the apex or in the middle of the bottom and then it will 
> exhibit horizontal polarization.
> 
> 73, Dennis W0JX/8

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