> Hi Hubert -- > > That's a good hypothesis, but given how long this system (same receiver > and antenna) has been running without ever encountering something like > this makes me doubt it's a GPS anomaly, or at least a local one. A long > history has shown that this receiver/antenna very seldom loses lock, and > the only strong transmitters nearby are in my hamshack, and were shut > down while I was out of town. > > Actually, right now I'm suspecting it might be a cabling problem (a > possibly intermittent cable on the 1pps to the TIC that moved when the > door to the 5061A control panel was opened), though it's surprising that > something like that would result in more than a very transient phase > shift -- I'd expect to see a transient in one data reading, not > something that happened over hours. I'll be doing some tests to see if > I can reproduce the jump when the cable is moved.
How's the ESD environment in the room with your 5061A? Was there a spark when your wife touched the knob (no double-entendre intended)? -- john KE5FX _______________________________________________ time-nuts mailing list time-nuts@febo.com https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts