GPS Receiver, Option 31 7-4 GPS Info Window
MS20xxC UG PN: 10580-00305 Rev. J 7-5
Fix Available
The cold start search sets are established to ensure that at least three satellites are acquired
within the first couple minutes of GPS activation. When three satellites are found, the
receiver computes an initial fix (typically in less than two minutes). Fix Not Available means
that the initial position has not been established.
Almanac Complete
The system Almanac contains information about the satellites in the constellation,
ionospheric data, and special system messages. In a cold start, the GPS receiver does not have
any navigation data, so the receiver does not have a current almanac. A complete system
almanac is not required to achieve a first position fix. The availability of the almanac,
however, can significantly reduce the time to first fix.
Antenna Status
OK:
Antenna is connected properly, and antenna is working properly.
Short/Open:
A short or open exists between the antenna and the connection. If this message is
displayed, then remove and replace the GPS antenna. If the message persists, then try
another Anritsu GPS antenna (part number 2000-1528-R). If the message still persists,
then contact your nearest Anritsu Service Center (refer to section “Anritsu Service
Centers” on page 1-2).
Receiver Status
OK:
Receiver is working properly.
No GPS Time Yet:
The receiver does not have any input signal, which is usually the case when the
antenna status is not OK. Check the antenna connection. If the antenna status is OK
and if this message persists, then contact your nearest Anritsu Service Center.
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