Simrad HS52 Instruction Manual page 56

Simrad HS52 GPS compass and DGPS navigator
Last heading
Common sat.
48
Reduced Heading Indication, page 61 in this manual for
troubleshooting the system.
This is the time since the system calculated the GPS heading. If
GPS signals drops out this figure will increase. In the first 300
seconds after loss of GPS heading, the heading output is
determined from the inertial element. After 300 seconds of loss
of GPS heading in the system the output of heading data will
terminate. If so, see Invalid Heading, page 61 for trouble
shooting the system.
Shows the number of common satellites seen by the two GPS
antennas. The number of common satellites have to be two or
higher to determine heading. If the number is less than two, see
Invalid Heading, page 61 for trouble shooting the system.
The other information in this display is only of interest to
service personnel.
In the SBAS page information of which SBAS system used by
the Simrad HS52 is presented together with the selected satellite
by its PRN number, the message rate of this satellite and status
on SBAS warnings.
The DGPS page includes information of the external connected
IALA beacon receiver (WER number) and if delivered it also
include information on the internal receiver built-in the Sensor
unit (WER, Serial Number, SS and Frequency (FQ)). Any
received DGPS text message will also be shown.
Number of satellites used in the GPS position fix with indication
of increasing or decreasing azimuth (Az) and elevation (El).
This display is mainly used by service personnel.
Number of satellites used in the GPS position solution and the
number of satellites tracked by GPS antenna no. 1 (Tr1) and 2
(Tr2) is shown in this display.
This display is mainly used by service personnel.
20222360 / E