[TowerTalk] quad vs. yagi @ low height

[thompson@mindspring.com]

Lane, KM3G asked

>
>Esteemed Reflectees,
>
>I am going to put a fixed wire "beam" so I can have a more regualr schedule
>with my father, KA3IFO in Erie, PA, on 17 meter phone. My question is what
>do you all think will work better:
>
>1. A fixed wire yagi around 10-15 feet above the roof (actually an inverted
>vee yagi).
>
>2. A fixed wire quad at around the same height (actually a delta loop
>array).


Suspect the delta loop (assume 2 el) will be slightly better altho the fixed
wire beam will also work.   Assume 12' to 15' for the roof plus the antenna
height.   The quad is known to have a lower angle for a given height.
Either will have a broad pattern at such a low height so you will get good
coverage of Lower W0, W5, W4 (maybe not South Florida), W3, W2, W1 and parts
of W8 and 9.  Ve1, 2, 3.
>
>I have plenty of room length wise to add up to say 7, 8 or 9 elements on a
>long boom (rope boom).
>
Get the 2el version working first as more elements sharpen the pattern.


>Maybe make it bi-directional with a common reflector? Switch in different
>driven elements and sets of reflectors??


Bi-directional would give you Pacific so might be worth the effort.


73, Dave K4JRB

PS I work 17 meters (altho I have the antennas down working on my KT34XA) so
let me know and I'll see how you are doing into the Atlanta area.



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