>
>On Sat, 8 Sep 2001 "Mike & Coreen Smith" <ve9aa@nbnet.nb.ca> writes:
>> Hi Tom (et al)
>>
>> Always enjoy reading your posts.
>>
>> My Delta loop as I recall is Vertically polarized. I fed it partway
>> (I think 1/8WL(?)--been 9 years since I crawled into the thick trees
>and
>> installed> it) along the bottom edge.
>
>Vertical polarization of a Delta Loop results when you feed it
>1/4 WL down from the apex on one SIDE. Each side is .33 WL.
>
>Horizontal polarization of a Delta Loop results when you feed it
>at the Apex OR in the middle of the Bottom Wire.
>
>Offsetting the feedpoint from either of these configurations results
>in both horizontal and vertical components.
>
// I saw a demonstration on an antenna range which showed that a FW loop
does not have both both horizontal and vertical components of either the
E-field or the H-field. Cross polarization isolation was equal to that
of a dipole.
>Feed impedance is typically around 100-120 ohms and can
>be matched to 50 ohms through a 1/4 WL (electrical) length
>of 75 ohm coax such as RG-59.
>
>Tom N4KG
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