In an ideal world, perhaps. But much of the limit on what you can work
with 5W is not QRM, but rather the noise in the other station's receiver
(man-made and static) and the quality of his/her RX antennas.
I can give MANY examples of stations whose TX signal far out reach their
RX capability. A club station active in 160M contests is hard to work
with 1.5 kW and a full size vertical with a tower as a passive
reflector, whereas I've worked all the W1 and W2 states except VT with
5W on that band. Several years ago, I had a JT65 sked with an ND
station. He was running about 30W. and WSJT software said he was 16 dB
below my noise (the latest WSJT-X software can decode signals as weak as
28 dB below the noise floor). I called with barefoot at about 50W. No
response. Over about 10 minutes, I increased my TX power in 3 dB steps
(using the KPA500). He finally heard me at 400W. And it's well known
that stations in the tropics and those in summer seasons tend to have a
lot more static than those at higher latitudes and in winter seasons.
73, Jim K9YC
On Thu,4/6/2017 1:46 PM, Ron D'Eau Claire wrote:
For
example, if everyone ran 5 W maximum you'd be able to work almost all the
stations you hear with the KX2 "barefoot".
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