bypasses the normal, programmed, waiting time of 20 minutes for the automatic update of GPS position data.
If no valid GPS position data is available, the beacon will keep the previously stored GPS position data for up to 4 hours. In this case, call ACR Customer Service at +1 (954)
A new beacon is programmed with the GPS position data set to a default. If the beacon should be activated, this default GPS position data indicates to the satellite system that the beacon has no valid GPS position stored in memory. Once a functioning and compatible external GPS receiver is properly connected to the beacon, the default data will be replaced by valid GPS position data, as described in the previous sections.
5.LED indication of GPS fix
When the beacon is activated and valid coordinates are acquired, the data is included in the digital message of the next 406 MHz transmission. The LED blinks green when GPS coordinates are sent.
If a time period of 4 hours passes without the internal GPS receiver being able to update the last good set of navigational coordinates, the message transmitted by the beacon will revert back to default data. At this point the green LED will stop blinking and the red LED will flash. The internal GPS will continue to seek coordinates and when successful the green LED will flash. This new data will be transmitted in the next message burst and the green LED will continue to flash.
6.Compatible GPS receivers
External GPS interface requirements: In order to be compatible with the Satellite3 406™, an external GPS receiver must provide location information according to the following requirements:
//NMEA 0183, Version 1.5 or higher
//Baud rate: 4800
//Talker device identifier: GP (GPS Receiver)
//Sentence format: GGA (GPS Fix Data)
For more information regarding external GPS device compatibility, please visit the ACR website at www.acrelectronics.com.
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