333
edits
Changes
Template:FMB Features settings (view source)
Revision as of 15:44, 23 December 2022
, 15:44, 23 December 2022→GNSS Jamming
GNSS Jamming record is stored in AVL ID 318 parameter and has 3 possible values:
GNSS Jamming record is stored in AVL ID 318 parameter and has 3 possible values:
0 - No Jamming,
*0 - No Jamming,
1 - Jamming warning status, which means that signal and accuracy is disrupted but device is able to hold GPS fix for at least 5 seconds.
*1 - Jamming warning status, which means that signal and accuracy is disrupted but device is able to hold GPS fix for at least 5 seconds.
2 - Jamming critical status, which means that device is not able to acquire GPS fix.
*2 - Jamming critical status, which means that device is not able to acquire GPS fix.
Worth mentioning, that Jamming Detection can go from any state to any other in 1 second intervals. It is completely dependent on received NMEA data by GNSS receiver. Therefore, it is possible in repeated jamming scenario for the state to rapidly go from 0 to 2 and backwards.
Worth mentioning, that Jamming Detection can go from any state to any other in 1 second intervals. It is completely dependent on received NMEA data by GNSS receiver. Therefore, it is possible in repeated jamming scenario for the state to rapidly go from 0 to 2 and backwards.