USGlobalsat ET-314 - Manual (Page 18)

ET-314
The Specifications are subject to be changed without notice. Copyright © 2007, GlobalSat Technology.
Page 18 of 19
Version 1.2
, *CKSUM
Latitude position, assumed positive north of equator and negative
south of equator float, possibly signed
Longitude position, it is assumed positive east of Greenwich
and negative west of Greenwich
Float, possibly signed
Altitude position
float, possibly signed
Clock Offset of the receiver in Hz, use 0 for last saved value if
available. If this is unavailable, a default value of 75000 for GSP1,
95000 for GSP1/LX will be used.
INT32
GPS Time Of Week
UINT32
GPS Week Number
UINT16
Number of channels to use. 1-12
UBYTE
bit mask 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,*CKSUM
0=Off,1=On
Example: 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