In the same vein: I recently tried out my new 2m 1500w sspa at 750w
in SSB and stations on my net only stated a slight increase in signal
100 miles away vs running 130w. That should have indicated more than
one s-unit stronger (10Log (750/130)=7.6 dB).
Definitely a "knee" in signal strength where change is most
significant and where change above is not so much. HF that should
even be more compressed.
Raising antenna ten feet above tree top is worth at least 10-dB in
signal improvement at VHF (and way more as freq is increased into
UHF+). I can lower my 2m array to 4-foot AGL by use of a
winch. Going from there to about 40-feet (tree top) is worth maybe 5-dB.
73, Ed - KL7UW
http://www.kl7uw.com
Dubus-NA Business mail:
[email protected]
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