[time-nuts] Can I get 1 millisecond accuracy with a USB GPS-18
jimlux at earthlink.net
Mon May 13 10:43:00 EDT 2013
rummaged through archives and couldn't find anything..
I've got some GPS-18's with the RS232 and 1pps output. BUT, I'm
wondering if anyone has tried to get timing with the USB version (Linux
or Windows..), and if so, is getting 1 millisecond absolute accuracy
The underlying USB thing has 8kHz frame rate, but I suspect that the
serial port emulation (which is probably what they use) might not hold
it that well. I can see there being some sort of fixed offset (going
through hubs and such), but once the configuration is known, is that stable?
Any practical advice?
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