[time-nuts] OT re, Sacramento River Monitor

Mark Spencer mspencer12345 at yahoo.ca
Sat Jan 14 16:51:22 EST 2012


Interesting.   Thanks for posting this.   There was also a reference re the usage of gps to time the transmission times.

Sent from my iPod

On 2012-01-14, at 2:54 PM, Magnus Danielson <magnus at rubidium.dyndns.org> wrote:

> On 01/14/2012 08:00 PM, Poul-Henning Kamp wrote:
>> 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 ?
>> 
> 
> Well, following the links I found this:
> 
> http://www.nws.noaa.gov/oh/hads/internal/
> 
> Check section 1. As I undestand it from my very very brief reading you have timed messages and random messages, but none of them is polled.
> 
> I'm sure someone can do a more serious homework than I just did.
> 
> Cheers,
> Magnus
> 
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