Thread: Effects of TOA
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Old April 15th 07, 05:23 PM posted to rec.radio.amateur.antenna
Richard Clark Richard Clark is offline
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Default Effects of TOA

On 13 Apr 2007 16:41:25 -0700, "JIMMIE"
wrote:

I have observed that a halfwave vertical dipole
will communicate to different areas than a 1.25wl vertical monopole


Hi Jimmie,

A low halfwave operates best at 16 degrees; a quarterwave works best
in the 20s of degrees; while a 1.25 wavelength antenna works best in
the high 50s of degrees.

This presumes the last two are both ground mounted. Given that any of
these presumptions are at best a guess, then the numbers are merely
for guidance as reality may be vastly different (you really haven't
given us enough information). Actual physical size and elevation help
considerably. Also, as this is 10M, was some of the traffic from the
neighborhood (within 20 miles)?

73's
Richard Clark, KB7QHC