Data Sheet

GPS Module
L80 GPS Protocol Specification
L80_GPS_Protocol_Specification Confidential / Released 28 / 41
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Each of message
3.18. Packet Type: 313 PMTK_API_SET_SBAS_ENABLED
This message is used to enable or disable to search a SBAS satellite. SBAS (Satellite Based
Augmentation Systems) is a system that supports wide-area or regional augmentation through
geostationary satellite broadcast messages. The geostationary satellite broadcast GPS integrity and
correction data with the assistance of multiple ground stations which are located at accurately-surveyed
points.
Example:
$PMTK313,1*2E<CR><LF>
Field
Description
$
Each NMEA message starts with ‘$’
PMTK
MTK proprietary message
Packet type
313
Enable
‘0’ = Disable
‘1’ = Enable
*
End character of data field
Checksum
Hexadecimal checksum
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Each of message
3.19. Packet Type: 314 PMTK_API_SET_NMEA_OUTPUT
This message is used to set NMEA sentence output frequencies. There are totally 19 data fields that
present output frequencies for the 19 supported NMEA sentences individually.
Supported Frequency Setting
0 - Disabled or not supported sentence
1 - Output once every one position fix
2 - Output once every two position fixes
3 - Output once every three position fixes
4 - Output once every four position fixes
Quectel
Confidential