[IGSMAIL-6263] Re: Remembering Harry Peters
bill carter
carter4451 at bellsouth.net
Fri Sep 17 19:31:46 PDT 2010
Hi All,
Harry Peters built MASER frequency standards under contract to NOAA/NGS for
the VLBI stations that we equipped with Mark III VLBI terminals for project
POLARIS - Fortaleza, Hobart, Hartebeesthock. I don't know if they are still
in use. I know that I found Harry easy to work with and he was dedicated to
delivering the best produce that he could, at the lowest cost. At the time,
Harry and Bob Vessot disagreed about the best design for the MASER
oscillator cavity - Bob built his out of Cer-Vit to minimize temperature
effects and make the most stable oscillator that he could. Harry made his of
Aluminum, and had a feed back loop to compensate for dimensional changes. We
bought a Vessot MASER for Westford, and it performed well, but it was
considerably more costly than we could purchase from Harry Peters, so we
purchased three from him, and they also performed well. I'm sorry to hear
the he has passed away - seems like every day I hear about the death of
another old colleague. Thanks, Tom Clark, for passing on the information and
for the nice summary of Harry Peters life and contributions to science.
Bill Carter
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