Fcn 24: Gps Location; Fcn 25: Volt/Temp - Optus S2 User Manual

6

FCN 24: GPS LOCATION

FCN 2 4
GPS Location
CLR
EXIT
This function displays the current position of the Optus
MobileSat S2 as derived from the GPS driver inside the S2
transceiver or an external GPS device. This is a read-only
display.
This information is stored in a mailbox within the memory. It is
sent with the distress message packet whenever this facility is
activated.
If no GPS driver is installed, the mailbox will be loaded with zero
values for latitude and longitude. An external GPS device may
be connected to the Optus MobileSat S2 to update the mailbox.
See page 75.
This screen will flash every 10 seconds to indicate that an update
has occurred. A supplementery page shows the speed and
heading information.
Read GPS Location
FCN
2 4
The GPS Location will
display the latitude and longitude
in degrees, minutes and seconds.
+ / - to toggle to
supplementery page.
EXIT
CLR
(Hold) Return to previous screen.
Position:
0º 0' 0S
0º 0' 0E
100
6

FCN 25: VOLT/TEMP

FCN 2 5
Volt/Temp
CLR
EXIT
This function displays the voltage supply level (as measured by
the unit) and the internal temperature of the Base Assembly
unit. The second page displays the temperature of the HPA unit
and also the AFC offset. This is a read-only screen, that is
updated every 2 seconds. The software updates the supply
voltage measurement every 2 seconds, but the temperature is
only updated every 20 seconds.
A voltmeter or thermometer should be used if these parameters
are to be monitored for a length of time.
Read Unit Voltage and Temperature
FCN 2 5
The Voltage and
Temperature of the unit will be
displayed.
+ or - to toggle between the
two pages of information.
EXIT
CLR
Return to previous screen.
Protective Shutdown
The Optus MobileSat S2 powers
down when the internal
temperature reaches 70°C, or
goes below -15°C (warning at
65°C, -10°C).
The Optus MobileSat S2 powers
down when the (averaged) supply
voltage drops to 10.5 Volts, or goes over 32V for more than 2
seconds.
Warning displays appear on the handset if the excess is
gradual.
FCN 25
Volt 13.6 V
Base 33ºC
FCN 25
AFC +002Hz
HPA 28ºC
101