Joe, I mentioned those spikes in an earlier, private email as well, I think Bob is correct, there's something going on with the sawtooth correction.
Since you're already reading the quantization error correction data from the Ublox TIM_TP message, you might want to try "digitally" applying it. Leave the delay line in bypass and just subtract the correction data from the analog interpolator reading you get for the corresponding pulse. You need to properly scale it to picoseconds, though. Regards, Matthias On Dienstag, 10. November 2020 19:13:26 CET Joe & Gisela Noci wrote: > Bob, Thanks for that. I am going to dig! > > Joe _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.
