[time-nuts] GPS PRN 32

Tom Van Baak tvb at LeapSecond.com
Fri Feb 8 20:28:19 UTC 2008


Which time-nut will be the first to see PRN 32 on Feb 19?
I wonder what old GPS receivers won't be able to see it?

This is from GPS World via NavtechGPS News...
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"The U.S. military announced earlier this week that GPS satellite SVN23,
transmitting L-band code as PRN32, will be set to usable status on
Feb. 19. This is notable for a couple of reasons, but namely because
it is the first time that the PRN32 designation will be used by an
operational, healthy GPS satellite. 

GPS receivers initially were built to accommodate up to 31 satellite
signals, and a PRN designated with the number 32 can't be tracked by
some manufacturers' devices that look for PRNs numbered 0 through 31.
The U.S. Air Force began testing the PRN32 designation late in 2006 -
while SVN23/PRN32 was set to unhealthy and not included in the
operational GPS constellation almanac, some all-in-view GNSS tracking
stations received the L-band signal."

http://sidt.gpsworld.com/gpssidt/content/printContentPopup.jsp?id=490027

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/tvb






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