Spectra Precision ProMark 800 Reference Manual - Manual (Page 396)

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Query Command Library
BSP: 1.0-200
GNSS S/N: 702465A011230172
GNSS Options: WJKLEYGSVHCPIQFAOD
RFS: 717
GSM Q26 Extreme: R.7.4 IMEI : 351919030190256 stack IP : WIP Soft v540
on Open AT OS v634
Internal Radio: ADL V03.02(2250)
Comments In the GSM: information line, the GSM version will appear
only after the modem has been turned on. The stack IP
version will appear only after a GPRS connection has been
established.
See also $PASHQ,RID
VTG: Course Over Ground and Ground Speed
Function This command is used to output a VTG message.
Command Format Syntax
$PASHQ,VTG[*cc]
Response Format Syntax
$GPVTG,f1,T,f2,M,f3,N,f4,K,c5*cc