[time-nuts] GPS timing receivers
james.h.maynard at usa.net
Tue Oct 25 19:11:54 EDT 2005
Or see the Locus receivers, they are multi-chain.
I inquired about their CsSync 1030 with H-field antenna, and found it
beyond my means: USD $6000 :(
Jim Maynard, K7KK
Salem, Oregon, USA
From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
Behalf Of Poul-Henning Kamp
Sent: 2005 October 25 10:56
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] GPS timing receivers
In message <20051025.114507.13025778.imp at bsdimp.com>, "M. Warner Losh"
>In message: <435E6BA2.8000906 at erols.com>
> Chuck Harris <cfharris at erols.com> writes:
>: Because PPS isn't encoded in the loran signal. The only way you
>: have of recovering PPS information is to know when the next time of
>: coincidence (TOC) will occur at your location, and start your 1PPS
>: at that time. A TOC is when your master chain's starting pulse
>: happens to occur at an exactly the start of a UTC second.
>So timing LORAN-C receivers only look at one LORAN-C chain then?
Very few LORAN-C receivers are multi-chain.
I belive the Austron 5000M was multi-chain (and took a PDP/11 ?)
Megapulse have some multi-chain receivers as well.
I don't think I've seen any other.
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
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