Tom Azlin, N4ZPT
tom at n4zpt.org
Sun Dec 5 14:44:29 CST 2004
Hal Feinstein wrote:
> I know that radio astronomers often supercool some of their receiving
> equipment to lower the
> noise and thereby improve its sensitivity. As a thought experiment,
> would it be practical for a ham
> to supercool parts of the receiving chain of a system that was built
> to receive a very weak signal?
> I'm thinking that the equipment, for example a low noise converter,
> could be placed into some kind of protective jacket and emersed in
> some supercool O2 or CO2 (dry ice). First, does it make sense from a
> radio engineering/physics point fo view? Second, is their a
> practical way to do this without elabroate equipment. Third, anyone
> in the amateur community tried this?
> --hal wb3kdu
> Tacos mailing list
> Tacos at amrad.org
Kerry , WA4BQM, is a radio astronomer (and member of VWS) who might be
able to answer your question.
73, Tom n4zpt
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