NMEA Manual based on MediaTek chipset - Manual
FTX-HW-13002-A
Preliminary
Page 24 of 39
DataField:
PMTK352,Enabled
Enabled:
‘0’: Disable
‘1’: Enable
Example:
$PMTK352,0*2A : Disable QZSS
$PMTK352,1*2B : Enable QZSS
Reply:
$PMTK001,352,3*34<CR><LF>
This message applies only for MT333X based receivers IT530, IT530M, UC530 and UC530M.
2.32
PMTK353 API SET GNSS SEARCH MODE
Command purpose:
This command is used to configure the constellations used in navigation.
Default setting is both Glonass and GPS enabled.
Command number:
353
DataField:
PMTK353,GPS_Enabled,GLONASS_Enabled
GPS_Enabled: ‘0’: disable (DO NOT search GPS satellites)
‘1’ or non-Zero: search GPS satellites
GLONASS_Enabled:
‘0’: disable (DO NOT search GLONASS satellites)
‘1’ or non-ZERO: search GLONASS satellites
Example:
$PMTK353,0,1*36<CR><LF> : Search GLONASS satellites only
$PMTK353,1,0*36<CR><LF> : Search GPS satellites only
$PMTK353,1,1*37 : Search GPS and GLONASS satellites
Reply:
$PMTK001,353,3*35<CR><LF>
This message applies only for MT3339 based receivers IT530M and UC530M
2.33
PMTK386 API SET STATIC NAV THD MT333X
Command purpose:
Set the speed threshold for static navigation. If the actual speed is below the threshold, then the output position
will stay the same, and the output speed will be zero. If the threshold value is set to 0, this function is disabled.
Command number:
386
DataField:
PMTK386,speed_threshold
speed_threshold: 0=disable; >0 = speed threshold in m/s
The minimum is 0.1 m/s, the maximum is 2.0 m/s.
Example:
$PMTK386,0.7*3A<CR><LF>
