[time-nuts] OT re, Sacramento River Monitor

lists at lazygranch.com lists at lazygranch.com
Sat Jan 14 14:41:09 EST 2012


I pulled this off the GOES manual. 

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Generally, GOES telemetry involves one-way communication: a remote site transmits data periodically to the satellite, but the satellite does not send information to the remote site. Although GOES satellites have transmitters that make downlink communication possible, these features are rarely used because the associated receiving equipment at the surface site would double the cost and complexity of the telemetry equipment. Consequently, you must visit the site to change operating protocols and perform such tasks as resetting the YESDAS clock if its drift becomes too great.
------Original Message------
From: Poul-Henning Kamp
To: lists at lazygranch.com
To: Discussion of precise time and frequency measurement
Subject: Re: [time-nuts] OT re, Sacramento River Monitor
Sent: Jan 14, 2012 11:00 AM

In message <1883277640-1326563411-cardhu_decombobulator_blackberry.rim.net-2071
435797- at b11.c1.bise6.blackberry>, lists at lazygranch.com writes:

>And as you indicated, timing is everything here. You get your slot
>to send the data.

I thought I read somewhere that it was a polled system, where the
satellite tells the stations when their chance is ?

-- 
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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