I've recently completed K2 5336 but only today connected a properly
resonant antenna on 40m.
The results surprised me. With the pre-amp on the receiver suffers
from serious overload and intermodulation and 40m - a problem that
does not occur with the same set up on my FT1000MP. I've played
around with AGC and RF gain settings but it is pretty much unusable
with the pre-amp switched on. Both the FT1000MP (with no
attenuation) and the K2 (with the pre-amp switched on) register S9
for 50 microvolts signal input, so I'm assuming (perhaps wrongly?)
that they have comparable sensitivity under these conditions. I know
I'm getting sufficient sensitivity for the band conditions with the
pre-amp off, but the apparent poorer performance of the K2 puzzles
me, particularly as other independent tests have indicated that it
should be better than the FT1000 with respect to strong signal handling.
Any suggestions?
73 Bob G3YIQ
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