I am going to order another KX3 this week. Probably tomorrow. The last
one I ordered in 2012 did not have the roofing filter option and I do
not THINK I missed it.
I use ONLY CW and I do NOT contest. I like to CASUALLY chase DX and I
play in low stress sprints like NAQCC but mostly I just like to RAG
CHEW.
My antenna is an EFHW installed as a "half square" in trees at 30 feet
(MyAntennas 4010).
I have reviewed the Elecraft site notes, and done a fair amount of
Googling and I now am more confused than ever. It seems that the real
value lies in dealing with strong signals, crowded bands and ferocious
contesting conditions.
My bottom line question is this: If I DO NOT get the roofing filter
option will my KX3 receiver be LESS SENSITIVE? The Sherwood report
shows a pre-amp off sensitivity of .9 uv which improves to a very
impressive .09 with the preamp on. Is this somehow related to the
roofing filter?
I am especially concerned because I remember doing an A/B comparison on
a weak signal between my previous KX3 and my 55 year old Drake 2B and
the 2B beat the crap out of the factory built KX3. I can't help
wondering if the roofing filter I didn't buy in 2012 had something to do
with this.
I sure could use a real simple answer: buy it or don't buy it? CW
sensitivity is my ultimate goal because if I can't hear 'em I can't work
'em.
Thanks and 73,
Stan WB2LQF
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