Data Sheet

GPS Module
L80 GPS Protocol Specification
L80_GPS_Protocol_Specification Confidential / Released 35 / 41
Field
Description
$
Each NMEA message starts with ‘$’
PMTK
MTK proprietary message
Packet type
501
Mode
DGPS data source mode.
‘0’ = No DGPS source
‘2’ = WAAS
*
End character of data field
Checksum
Hexadecimal checksum
<CR><LF>
Each of message
3.28. Packet Type: 513 PMTK_DT_SBAS_ENABLED
This message is the response to PMTK_API_Q_SBAS_ENABLED.
Example:
$PMTK513,1*28<CR><LF>
Field
Description
$
Each NMEA message starts with ‘$’
PMTK
MTK proprietary message
Packet type
513
Enable
‘0’ = Disable
‘1’ = Enable
*
End character of data field
Checksum
Hexadecimal checksum
<CR><LF>
Each of message
Quectel
Confidential