Gary D Krause wrote:
Since the K3 is at the top of the list now and the K2 isn't far behind,
I've been wondering how the numbers really affect what we hear. If a
ham were to sit down in front of all the top rigs, blind folded and not
allowed to touch them, would he or she be able to pick out the one with
the best receiver by just using his or her ears?
The biggest issue is close-in dynamic range. When you notice this the
most is in a contest, when you are trying to work a station surrounded
by others. A receiver that's poor in this area will present you with
pops and other noises in the passband when there are loud signals nearby
which you may not be hearing. These noises cover up weak signals and add
to operator fatigue.
Another situation is when there are a lot of CW signals at various
pitches. A poor radio presents you with mass of distorted signals and
it's hard to pick out the one you want. One of the things I really like
about the K3 is that signals seem to stand out and you can use your
'brain filter' to differentiate.
If you mostly ragchew with reasonably strong signals in uncrowded bands,
it probably won't matter too much. But it's nice to know that the
capability is there if you ever need it.
--
73,
Vic, K2VCO
Fresno CA
http://www.qsl.net/k2vco
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