Lance,
Very good! On digital eme I found that freq stability is the more
critical parameter vs freq accuracy. WSJT (JT65) typically displays
up to 2.5 KHz of spectrum so one can find signals that are off center
frequency (on eme Doppler shift results in this as normal), but
keeping on a given frequency without drift is important when eme is
crowded or weak; choosing a 20-Hz sw decoder bw requires it.
Looks like the K144XV with
REFLOCK works. Adding an external 10-MHz on the K3 will only succeed
in bringing accuracy (I am 8-Hz accurate on 144-MHz with upward
thermal drift of 5-Hz in my transverter xtal osc. during the initial
20-30 min of transmission. This keeps my total offset within 13-KHz.
Looks like another win for Elecraft's responsive customer
"engineering" service.
I am hoping eventual duplication on 144 with the KX3.
73, Ed - KL7UW
Date: Wed, 10 Apr 2013 01:48:35 +0000
From: "Lance Collister, W7GJ" <w...@q.com>
To: Oliver Dr?se <dro...@necg.de>, Elecraft Mailing List
<elecraft@mailman.qth.net>
Subject: Re: [Elecraft] Using K3 for 2m EME
Hallo Olli,
It worked GREAT! I received ROCK SOLID stability reports from people
I worked JT65B
mode today on 2m EME ;-) It is tied to the high stability
oscillator that is in the
K3, but I have no external reference. I do have the KXV3A and the
K144XV-F with
REFLOCK, and on the menu setting it says that it is locked onto that fort the
frequency. I have not checked with people to see how close my 2m
frequency seems to
be, but I think it must be pretty close, and the stability is
obviously good. Nice
to have the same stability now that I have been enjoying from the K3
on 6m EME ;-)
GL and VY 73, Lance
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