OK, well one can study theory for several years before deciding what
antenna to use ... or just put up something and try it.
My guess a quarter-wave vertical with some radials will work. How
well? You will only find out by trying it.
My favorite HF antenna has been the simple half-wave dipole -cheap,
easy, quick. I did eventually obtain a triband trap yagi for
20-15-10m and works much better. Currently I have a 80/40m inverted-V
...and it works well for my needs. Worked a station on 80m SSB with
S9 signals on Saturday at 11am! Sure he was only a hundred+ miles
(short range is often harder). K3/10+KXPA100
On 630m (475-KHz) I have a 43-foot high inverted-L (that is 8% of a
quarter-wave). And my radials are limited to 100-foot by my property
lines. Obviously a very poor antenna. My CW signals was heard 4,000
miles away in Buffalo, NY. Not an everyday occurrence, but a surprise to me.
73, Ed
-----------------------
There is some erroneous information here, as well as in Don W3FPR's post.
Radials, whether buried or raised, only affect near field ground return
currents.? You cannot improve ground conductivity beyond the radials,
and the strength of the low angle lobe is directly affected by the
ground conductivity several wavelengths distant from the vertical.? This
is well established science and you can clearly see the effect in simple
models.
Dave?? AB7E
73, Ed - KL7UW
http://www.kl7uw.com
Dubus-NA Business mail:
[email protected]
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