[Elecraft] 2 M Transverter Stabliization

[Edward R. Cole]

Chuck,

You may have read that I am waiting delivery of a new 144/28 
transverter from DEMI (maybe this week).  It is a prototype 
dual-receive unit and there is a possibility it will include an ext. 
ref. locking LO.  DEMI is using me as alpha-tester of this 
transverter so putting a lot of new stuff in it.

I asked to be a beta-tester for the K3 ext. ref. modification, but 
have not received anything.

73, Ed - KL7UW
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Message: 22
Date: Sat, 12 Feb 2011 14:51:03 -0700
From: Chuck Smallhouse <w7cs at theriver.com>
Subject: [Elecraft] 2 M Transverter Stabliization
To: Elecraft at mailman.qth.net
Message-ID: <20110212135058.184C3F50 at dm0213.mta.everyone.net>
Content-Type: text/plain; charset="us-ascii"; format=flowed

Wayne, Eric,

I'm referring to some concerns described by inputs to the Elecraft
Reflector, about not only the stability but also L.O. calibration of
the 2 M xvrtr, K144XV and probably the XV144.   I wonder if in the
near future you might consider phase locking their L.O.s to a 10 MHz
OCXO.  I understand that there are some Beta units in the field that
are locking the K3's TCXO to 10 MHz (when can I get one?).  It would
also be great if you could do the same for your 2M xvrtrs, so that
they could be synched to the same stable source.

Many of us VHF/UHF/Microwave weak signal and EME
experimenters/operators, are now phase locking (via a 10 MHz source)
our xvrtrs to those upper bands, most of which use a 2 M IF.  At
present I don't believe that there are any other manufactures or
vendors doing this yet, for 2 M xvrtrs.  It would really be a boon to
have a self contained, ultra stable and accurate, 2M IF system the
quality of a K3.

Chuck,  W7CS



73, Ed - KL7UW, WD2XSH/45
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