User Manual

Table Of Contents
C-12 6880497G01-B June 1999
FIPS Action Commands and Parameter IDs RF-Baton! Transmitter Controller Installation and Operation
C-12 6880497G01-B June 1999
208
cont’d
GPS Report Position
Status
NOTE: If the almanac is bad, we may have
an occasion where the number of visible
satellites is 0, but number of tracked
satellites is 3. This means that there is not
enough info about the satellites in the
almanac, and the receiver will then at
random pick some satellites and tries to
track those. This may or may not result in a
position fix, or “tracking”. If the almanac is
OK, the number of tracked satellites is a
subset of the number of visible satellites.
Receiver Status:
There are 8 bits:
bit 7 (msb): Position propagate mode
bit 6 : Poor geometry (DOP > 20)
bit 5 : 3D fix
bit 4 : 2D fix
bit 3: : Acquiring satellites or position hold
bit 2 : Differential
bit 1 : Insufficient visible satellites (<3)
bit 0 : Bad Almanac
Table C-1: FIPS Action Commands
Action Name Description Usage Response