0×
01=Data Valid warm/hot starts=1
0
×
02=clear ephemeris warm start=1
0
×
04=clear memory. Cold start=1
UBYTE Example: Start using known
position and time.
＄
PSRF104,37.3875111,-121.97232,0,96000
,237759,922,12,3*37
F). Development Data On/Off ID:105 Switch Development Data Messages On/Off Use
this command to enable development debug information if you are having trouble getting commands
accepted. Invalid commands will generate debug information that should enable the user to determine
the source of the command rejection. Common reasons for input command rejection are invalid
checksum or parameter out of specified range. This setting is not preserved across a module reset.
Format:
＄
PSRF105,<debug>*CKSUM<CR><LF>
<debug> 0=Off,1=OnExample: Debug On
＄
PSRF105,1*3E Example:
Debug Off
＄
PSRF105,0*3F
G). Select Datum ID:106 Selection of datum to be used for coordinate
Transformations
GPS receivers perform initial position and velocity calculations using an earth-centered earth-fixed
(ECEF) coordinate system. Results may be converted to an earth model (geoid) defined by the selected
