ashtech Reliance FS/2, Operation Manual

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Satellite Constellation Screen (SATS)
Use the SATELLITE CONSTELLATION screen, Figure 4.6, to monitor the GPS
satellite constellation.
Table 4.6 describes the SATELLITE CONSTELLATION screen fields.
Figure 4.6: Satellite Constellation Screen (SATS)
Table 4.6: Satellite Constellation Screen Field Descriptions
Field Description
USED Number of satellites used in position computation. Satellites are not used
if their elevation is below the elevation mask or if the health code
broadcast by the satellite indicates unhealthy.
LOCKED Number of satellites locked.
AVAILABLE Number of available satellites. Based on the satellite almanac which
takes about 15 minutes to load after the receiver is first powered on.
PRN PRN number for each locked satellite.
ELV Elevation angle for each satellite.
AZM Azimuth for each satellite.
USE Y indicates satellite used for position computation. N indicates satellite
not used for position computation. To be used, a satellite must be
healthy and be at an elevation greater than the elevation mask.
If RTCM differential corrections active, correction information for each
satellite must be received from the base station.