Some of the cheap gigabit network cards can and with surprising accuracy On 29 Jun 2016 22:02, "Gary E. Miller" <g...@rellim.com> wrote:
> Yo Hal! > > On Wed, 29 Jun 2016 12:28:50 -0700 > Hal Murray <hmur...@megapathdsl.net> wrote: > > > bro...@pacific.net said: > > > 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. The GPS already sends a voltage down the cable to power the > antenna. Send a sharp down the cable and see when the reflection comes > back. > > Even some of my cheap managed ethernet switches can do that. > > RGDS > GARY > --------------------------------------------------------------------------- > Gary E. Miller Rellim 109 NW Wilmington Ave., Suite E, Bend, OR 97703 > g...@rellim.com Tel:+1 541 382 8588 > > _______________________________________________ > 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. > _______________________________________________ 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.
