ACR Electronics AEROFIX 406 GPS I P-ELT - REV E Product Support Manual - Page 7

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ACR Electronics AEROFIX 406 GPS I P-ELT - REV E Product Support Manual

4.2.3 Activation with GPS I/O (P/N 2798.4 Only)

The TerraFix™ 406 GPS I/O is also equipped with an Onboard GPS receiver. Once activated the

TerraFix™ 406 GPS Onboard GPS engine will start up and search to find your LAT/LON and

incorporate it into your 406 MHz signal. In the case when external and internal GPS are present, the

internal GPS data will have priority at activation.

When the TerraFix™ 406 GPS I/O is turned ON, the GPS Onboard receiver is also immediately

turned ON and will immediately begin acquiring data. As soon as the GPS receiver acquires good

positioning data the red LED will stop blinking and the green LED will begin flashing once every 2

seconds. Once good global positioning data has been obtained, the GPS receiver waits for 20

minutes before looking for new positioning data again. If for any reason a time period of 4 hours

passes without the GPS receiver being able to update the last good set of GPS coordinates, the

message transmitted by the TerraFix™ 406 GPS I/O will revert to default data. At this point the

green LED will stop blinking and the red LED will flash once every 2 seconds. If at any time after

this, good GPS data is obtained, this data will be transmitted, the red LED will stop blinking and the

green LED will begin flashing again.

Unlock and position Upright

Figure 3 Key pad cover

Open the key pad cover for access to

Test or activate the beacon

Figure 2 Antenna Position

Figure 5 Deactivation

Figure 4 Activation

Press red OFF button for more than ½ second

Press both test buttons simultaneously for more

than ½ second and no longer than 5 seconds

Y1-03-0174 Rev. E