In message <[email protected]>, Chuck Harris writes: >Of course you would need to calibrate a JJ standard. If you recall, >the JJ works by being cooled to some LN2 like temperature, and then >being fed with a microwave frequency that is part of the standard's >definition. If the temperature is wrong, or the frequency is wrong,
Actually that's not really true. The temperature has no effect on the output, as long as it is low enough to ensure superconductivity, and if it isn't, you get no output. The frequency has to be right, and since it is typically way up in microwave territory, 75 GHz or thereabout, that is somewhat finicky stuff. It's not quite the plug&play of a HP5071A, but it isn't that far from it. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 [email protected] | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
