[Elecraft] WTB Trimble ThunderBolt for K3EXREF / QS1R
Dave
elecraft at g4fre.com
Wed Apr 8 10:07:34 EDT 2015
I have had a similar experience on 3400MHz EME. I used a 12V wallwart to
power my DEMI 10-4 10MHz splitter after my LPRO101 Rb Standard feeding the
K3 and the 10MHz locked Xverter. I got complaints from 3 continents that my
signals off the moon had 120Hz sidebands!
Dave
WW2R
Message: 4
Date: Mon, 06 Apr 2015 23:31:55 -0800
From: Edward R Cole <kl7uw at acsalaska.net>
To: Elecraft at mailman.qth.net
Subject: Re: [Elecraft] WTB Trimble ThunderBolt for K3EXREF / QS1R
Message-ID: <201504070731.t377VtGk062316 at ingra.acsalaska.net>
Content-Type: text/plain; charset="us-ascii"; format=flowed
A caveat regarding the use of simple "wall wart" 12v PS for supplying a
OCXO.
I am using a Morion OCXO as 10-MHz reference for my K3EXREF and for
my synthesized A32 PLL in my DEMI 1296 transverter. I got reports of
120-Hz sidebands on my signal (-10dBc) turned out to be due to
excessive AC ripple riding on the 12v coming from my wall wart supply
that I was using to power the OCXO.
73, Ed - KL7UW
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