USGlobalsat EM-406a User Manual
Page 12
EM-406a
Specifications are subject to be changed without notice.
Page 12 of 13
Version 1.4.1
Format:
$PSRF104,
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
is 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 in attaining
commands accepted. Invalid commands will generate debug information that should enable the user
to determine the source of the command rejection. Common input rejection problems are associated
to invalid checksum or parameter out of specified range. Note, this setting is not preserved across a
module reset.
Format: $PSRF105,
0=Off,1=On
Example: Debug On
$PSRF105,1*3E
Example: Debug Off
$PSRF105,0*3F