[Elecraft] KX3 and Data modes

[Phillip Shepard]

For reference purposes, when Ed checks into the SSB net with me, I usually
have my 2-el Quad pointed east, broadside to his direction (north).  I
usually hear him OK at his 12+/- watts.

Phil, NS7P

-----Original Message-----
From: elecraft-bounces at mailman.qth.net
[mailto:elecraft-bounces at mailman.qth.net]On Behalf Of Edward R. Cole
Sent: Tuesday, March 13, 2012 9:59 AM
To: Elecraft at mailman.qth.net
Subject: [Elecraft] KX3 and Data modes


Regarding the effectivity of the KX3 on SSB, I can relate the
effectivity of the K3/10 on SSB (equivalent RF power).  I previously
thought I was running about 15w on 20m but with a new element for my
Bird43 I know that is was actually 11.5w.  CW benefits from the
effective reduction in bandwidth (50-Hz) that many top CW ops exhibit
which offers up to 17 dB advantage.  Say you have an average of
250-Hz and that advantage is 10-dB.  JT65 has a theoretical 30-dB
advantage and practically one could say 26 dB.  Other narrow-band
digital modes should offer increased performance, also.  QRSS does by
the fact the signal is averaged over long time periods.

I have been checking into the Elecraft SSB Net fairly regularly and
being copied by Phil, NS7P who is 1620 miles from me.  I run an old
Hygain TH3mk4 tribander at 50-foot which helps.  Now I have a new HF
amp which I have been running at 200w but can run up to 270w with
11.5w drive.  That was necessary to make it last weekend during the
solar flare.


73, Ed - KL7UW, WD2XSH/45
======================================
BP40IQ   500 KHz - 10-GHz   www.kl7uw.com
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