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AP-16
Digital Interface (IEC 61162-2)
Input sentences
GGA, GLL, RMA, RMC, ZDA, VTG, RMB, WPL, MTW, DBT, VDR, BWC, BWR
Output sentences
GGA, ZDA, GLL, VTG, RMC, GSV
Transmission interval
GLL, GGA, VTG, RMC: 2 s
ZDA: 1 s
GSV: 10 s
Data transmission
Data is transmitted in serial asynchronous form in accordance with the standard referenced in 2.1
of IEC 61162-2. The first bit is a start bit and is followed by data bits, least-significant-bit as
illustrated below.
The following parameters are used:
Baud rate: 4800
Data bits: 8 (D7 = 0), parity none
Stop bits: 1
D0 D1 D2 D3 D4 D5 D6 D7
Start
bit
Stop
bit
Data bits