[time-nuts] How phase stable is rg59 or alternate coax
Poul-Henning Kamp
phk at phk.freebsd.dk
Mon Nov 21 13:30:42 EST 2016
--------
In message <CALg-KtM9NsHTt0RGmB3rxbsxM=hCXY7WGCtgO=xUctVbCXxN=g at mail.gmail.com>, Scott Stobbe writes:
>If you had 30 ft of rg59 outdoors seeing maybe 10 degC swings everyday,
>would the propagation time be stable to ps? ns?
ps ?
No way - *ever*
ns ?
Probably, but it depends a lot on the exact materials and manufacturing.
--
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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