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REPORTED
GPS/AIS USER EQUIPMENT PROBLEMS INVOLVING PRN32
On February 27th, 2008 the GPS constellation increased to
32 satellites (PRN 32) thus providing a 5% increase in satellite
availability and DOP (dilution of precision) world wide. It
has come to our attention that some GPS equipment—particularly
old equipment which is non-compliant with the GPS interface
standard (IS-GPS-200)—cannot recognize this additional
satellite and subsequently are unable to calculate a position
(see listing below).
All GPS users are advised to monitor the operation of their
GPS equipment and equipment embedded with GPS, e.g. Automatic
Identification System (AIS) Equipment and to check with manufacturers
for possible fixes/solutions to effected equipment. GPS and/or
AIS problems should be reported to the USCG Navigation Center
(NAVCEN) at www.navcen.uscg.gov
or directly to the USCG Navigation Information Service at
1-703.313.5900.
List of affected equipment:
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