I am listening on 17 meters SSB right now and Europe is coming through
mostly S-7 to S-9 on the TH-11.
I can tune to an open spot in the band or just above the top edge of the
band and my S-meter
has one bar. This is with the pre-amp off. The band width is 2.1 khz.
Even at 2.7 khz I stay at one bar but
to my ear I can hear just a tiny bit more background noise which seems
logical to me. I had the RF gain at maximum
for the test. Obviously if you have some noise backing the RF gain off
is the way to go.
I like to listen with the shift at FC 1.40 rather than 1.50. For me a
little shift is always more
pleasant to listen to. I also always did this with the FT-1000D and
TS-950SDX
that I previously owned.
IMHO what more can you ask for?
When I switch to the dummy load at normal volume I can barely tell the
radio is on. I have zero bars on the S-Meter on
the dummy load.
I did these same checks with #1037, #1096 and #3423 and I can hear no
difference. They are all very quiet! Of course a factor
here is I live in a rural area where man made noise is low! I sure
don't expect my K3 to be quiet if I have man made noise other than
things you can do with the NB, NR, AGC and bandwidth.
It has been my experience over the years to "NOT" use the pre-amp on any
HF radio unless you are out of audio gain. The FT-1000D did not have a
pre-amp and the only place for me it was lacking was 10 meters. For me
I just don't hear more at 10 meters and down with a pre-amp. For me it
just brings the noise up with the signal. The only place I have seen a
big benefit from a pre-amp is above 28 mhz. Obviously the K3 benefits
from a pre-amp on six meters.
Ed W0SD
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