I have an 80m Delta Loop on 80 which I feed 1/4 wl from the apex with
a 4:1 Balun. Works well, and definitely has the low angle compared to
an inverted V which I also have. Bottom of the loop is about 12 feet
off the ground which is also important.
Good luck!
Rob
VE6TR
On 3-Feb-10, at 1:28 PM, Stuart Browne wrote:
> I'm looking at installing a Delta Loop for 80 m. on my 75' tower.
> The low
> end of the triangle will be about 20' off the ground ( the tower is
> on my
> rooftop (flat). I know that the conventional wisdom is a feed point
> in the
> center of the lower side of the equilateral triangle which is around
> 50
> ohms. ON4UN describes feeding a DL at 1/4 wl from the Apex of the
> triangle
> to achieve a 23 deg take off angle (which is what I'm after).
>
> I'm looking for any "real world" feedback as to the pros/cons of
> feeding a
> DL at the apex, lower center, corner or 1/4wl from the apex.
>
> 73's,
> Stu
> WH6H
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