One of upcoming new features of BrandMeister is NMEA 0183 Location Reporting.
- We addressing this feature as open standard for positioning.
- No remote triggering
- Fully based on existing open standards
This feature makes able to:
- Support positioning on MD-380 with custom firmwares
- Support positioning on Motorola radios with Bluetooth and without embedded GPS
Specification
- One-way messages without confirmation from application
- DMR radio should use confirmed or unconfirmed data transmission
- DMR radio should use ETSI service application IDs of UDP/IP header compression or IP-based data (see ETSI ETSI TS 102 361-1, 9.3.18)
- UDP daragram should use source and destination ports of 10110 that is reserved for NMEA by IANA
- Each UDP datagram should contain one or several lines of NMEA messages
- Each line should be ended with CRLF sequence
- BrandMeister processes only NMEA RMC messages
00000000 00 01 00 00 00 27 7e 27 7e 24 47 50 52 4d 43 2c -- .....'~'~$GPRMC,
00000010 32 31 30 34 30 34 2c 41 2c 33 39 31 33 2e 30 35 -- 210404,A,3913.05
00000020 34 33 2c 4e 2c 30 30 39 30 38 2e 32 34 37 36 2c -- 43,N,00908.2476,
00000030 45 2c 30 30 30 2e 30 2c 30 36 37 2e 32 2c 31 39 -- E,000.0,067.2,19
00000040 30 31 31 36 2c 2c 2c 41 2a 37 32 0d 0a -- 0116,,,A*72..
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