-------- In message <20160629192850.19c29406...@ip-64-139-1-69.sjc.megapath.net>, Hal Mu rray writes:
>> At one point they were looking into making a GPS time receiver where the >> cable length calibration would be built-in. > >How would you do that? TDR ? If it wasn't behind a choke, the inrush current to the antenna preamp power filtering capacitor could be measured, but the choke ruins that. The trouble is how to do it without frying the antenna preamp... Seriously... GPS antennas and receivers are cheap, I would just use two GPS antennas with a known difference in cable-length. -- Poul-Henning Kamp | UNIX since Zilog Zeus 3.20 p...@freebsd.org | TCP/IP since RFC 956 FreeBSD committer | BSD since 4.3-tahoe Never attribute to malice what can adequately be explained by incompetence. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
