Hi Paul,
Well, he's offering a 1 year guarantee, so I suppose that means this is a 9
year old unit. Fair enough, I guess. Hopefully I'll finally be able to get a
handle on where my GPSDO development stands without having to wonder about the
GPSDO I'm testing against.
The document I have says that it uses redundant external power sources. I take
that to mean that I can safely supply only one side and be fine?
Bob
From: Poul-Henning Kamp <[email protected]>
To: Bob Stewart <[email protected]>; Discussion of precise time and frequency
measurement <[email protected]>
Sent: Monday, December 1, 2014 11:15 AM
Subject: Re: [time-nuts] PRS-45 Cs Standard
--------
In message <1290866031.3259250.1417452840614.javamail.ya...@jws10610.mail.bf1.y
ahoo.com>, Bob Stewart writes:
>I've just won a "Symmetricom / Datum PRS45A PRS45-0001K - Single
>Cesium PRS-45 DS1" on ebay from a guy in the Netherlands.
As far as I know it is the cheapest Cs ever produced and it is
specifically targeted at telecoms where no GPS signal is, can
or will be made available.
It's main advantage over rubidium is the lack of drift, so you can
mount it, power it, push the button and as long as the light is lit
(10 years guaranteed) you have a good sync clock for your telco
network.
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
[email protected] | 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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