JRC JHS-770S Instruction Manual page 142

Specifications
3) Indication for GLL sentence
MI
A Autonomous mode
D Differential mode
E Estimated (dead reckoning) mode
M Manual input mode
S Simulator mode
N No Fix
Note
When receiving the GLL sentence, and if the Status in that sentence is A (Data valid), the quality type
is checked using the Mode Indicator (MI) as mentioned in the table above.
-
If the quality is valid, the operating state is indicated with the position and time information.
-
If the quality is invalid, or the Status is V (Data invalid), the next RMC sentence is referred.
9-16
Description
Operating state
Device
Positioning
GPS GPS
GLONASS GL
Galileo GA
Other OTH
GPS GPS
GLONASS GL
Galileo GA DGA
Other OTH
GPS GPS
GLONASS GL
Galileo GA
Other OTH
GPS GPS
GLONASS GL
Galileo GA
Other OTH
GPS GPS
GLONASS GL
Galileo GA
Other OTH
GPS GPS
GLONASS GL
Galileo GA
Other OTH
Quality
Valid Invalid
Quality
STD
●
STD ●
STD ●
STD
●
DGPS
●
DGL
●
●
DOTH
●
EST
●
EST
●
EST
●
EST
●
MAN
●
MAN
●
MAN
●
MAN
●
SIM
●
SIM
●
SIM
●
SIM
●
INVALID
●
INVALID
●
INVALID
●
INVALID
●