| Flightcell
®
DZM Operating Manual | Firmware v2.00
Page 57 of 88 |
Number of satellites currently visible
shows on line three of the display.
Satellites Used
displays when you have a GPS lock. The greater number of satellites being used to calculate
your position, the more accurate the position.
Satellites Detected
displays when the DZM is attempting to acquire a GPS lock. This defines how many
satellite signals are being received.
Setting automatic GPS transmission based on low speed limit
The DZM uses the 'Low Speed' setting to transmit GPS information on takeoff and landing, providing good start
and end points to flight paths.
When aircraft speed increases above this limit it transmits as a takeoff event message. When aircraft speed
decreases below this limit it transmits as a landing event message.
For helicopters, the 'Low Speed' setting should be set as low as possible to ensure automated GPS transmissions
continue to occur when there are small changes in speed while hovering. Alternatively, use the DZM 'Collective
Switch' function to transmit helicopter takeoff and landing information. Refer to "Setting automatic GPS
transmission based on collective switch position" on page 58 for further information about using the 'Collective
Switch' function.
‘Low Speed’, ‘Collective Switch’ or ‘Squat Switch’ settings, when enabled, are used to detect when an aircraft
is airborne. This ‘in flight’ state is used in conjunction with the GPS Tracking setting. Automated GPS position
reports will either stop or switch to the lower rate of every 20 minutes after the aircraft is considered ‘on the
ground’ and will revert to their configured rate again after the aircraft is considered ‘in flight’.
Manual GPS data will be transmitted regardless of the 'Low Speed' setting and the GPS Tracking setting. This
allows positions to be marked while on the ground or hovering in a helicopter.
Refer to "Configuring GPS tracking" on page 52 for further information about important settings that need to
be configured before GPS data will be transmitted.
Setting the Low Speed Limit:
From the ’Tracking Setup’ sub-menu, use the arrow keys to
navigate to ‘Low Speed’.
Press the
ENTER key to select. The 'Low Speed' screen
displays.
Press the
or
arrow keys to increase the low speed
limit.