Re: Airspy noise figure

Marcus D. Leech <mleech@...>

On 03/12/2018 01:36 AM, jdow wrote:

And LN2 is incredibly fun to play with when you have spare left over in the bottom of the flask.... Just be seriously freaking careful with the stuff lest you lose appendages. (Chocolate cake frozen in an LN2 cooled testing "oven" freezes so fast it thaws as good as fresh.)

One might be able to improve results for lower-noise devices with mere dry-ice for the cold-load. I've seen it done. The uncertainty would be higher
than with LN2, but better than at ambient....

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