Tom, Tom Van Baak skrev: > Ah, OK. So you keep the antenna connected and you keep the > GPS receiver in position hold mode, still receiving fixes. > > All you're doing is disabling the software disciplining algorithm. > That sounds like a good test. Let me try this too and see if I > agree with your conclusions.
We discussed this a little while back. I proposed a three-cornered hat using two receivers and one counter... as the Thunderbolts has a builtin TIC to GPS which can be logged. We also discussed just running a single Thunderbolt in holdover. Others had already tried that approach. Bruce and I discussed to some degree the effect of steering on the result. > I'll try to simultaneously measure the 1PPS or 10 MHz outputs > as you suggest. > > Has anyone hacked a TBolt yet to find which internal pin has > a raw 1PPS from the GPS engine (as opposed to the 1PPS > divided down from the OCXO)? Hmm... I have not even "repaired" (in the sense, that they are broken until opened and "repaired", i.e. just looking under the hood for sake of curiosity). any of mine... Cheers, Magnus _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
