[time-nuts] GPS becoming large
Bill Janssen
billj at ieee.org
Sun Oct 8 03:05:58 UTC 2006
Magnus Danielson wrote:
>Hi folks,
>
>I got this message, and I assume you would find it interesting.
>
>8<----
>Due to the extended life of the GPS satellites, we are now facing the
>possibility there will be more than 30 satellites in the constellation. It
>is believed this might be a problem in some receivers. Receiver
>manufacturers should be able to confirm if this is a problem. The Memo at
>http://www.navcen.uscg.gov/gps/gpsnotices/50SW_GPSW_letter.pdf gives more
>information.
>
>Civil responses: If you believe this will cause a problem, please contact
>NAVCEN at: TIS-PF-NISWS at uscg.mil by 20 October 2006.
>
>
>What is the best way to forward this to the telecom community?
>
>
Don't know what the "best way" would be but
www.atis.org
has a committee T1X1.3 that is concerned with synchronization matters
An email to them might be useful
Bill K7NOM
>I have not planned to be in Vancouver next week, though I am aware that
>there is an OPTXS and an ITU-T meeting. This seems important enough that
>ITU-T participants would want to know and check with their receiver
>manufacturers. That is, I think both U.S. and international telecom users
>should consider whether their receivers will fail because of this.
>
>Charles, perhaps you can forward this to appropriate people in Europe;
>perhaps at least members of the ITSF steering committee.
>
>Regards,
>Marc
>---->8
>
>With the GPS constallation hitting 32 we seems to run out of "legal" PRN codes
>even.
>
>Cheers,
>Magnus
>
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