[time-nuts] GPS USB dongle for time server

Poul-Henning Kamp phk at phk.freebsd.dk
Tue Nov 9 08:18:00 UTC 2010


In message <201011090430.oA94UP7Y046011 at stenn.ntp.org>, Harlan Stenn writes:

>Using USB serial introduces amusing amounts of jitter.  This is usually
>not a problem for the NMEA sentences, but I wouldn't want to be
>detecting the PPS signal via USB1 or USB2 serial devices.
>
>I've heard that USB3 should be much better.  I haven't touched any of
>these yet.

There is no difference, the basic poll-rate is still the same.

>
>-- 
>Harlan Stenn <stenn at ntp.org>
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-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.




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