>> I assume it's a software bug/feature. The problem is drift/wander >> in the offset. The offset changes too slowly for normal >> jitter filters to work on it. >> http://www.megapathdsl.net/~hmurray/ntp/GPSSiRF-off.gif
>connected via serial/nmea or pps? Direct USB. I have another one (using the SiRF chips) that is serial via a serial-USB adapter. Same thing. >that looks like some beat frequency effect. >But it is much too slow/time too big > to be sender and/or receiver uart clocking. Yes. But I don't think it's a USB problem. I get much better results with a Garmin GPS 18 USB. (Of course, what I don't know about USB could fill ...) -- These are my opinions, not necessarily my employer's. I hate spam. _______________________________________________ questions mailing list [email protected] https://lists.ntp.org/mailman/listinfo/questions
