NavCom Technology GPS Products, User Manual

Page: 34 / 67

SF-2050 User Guide - Rev. E
seconds] that
almanac
was collected,
almanac
reference week,
almanac
reference time,
almanac
source, almanac health, pages 1-25, and subframes
4 & 5.
•
81 Packed
Ephemeris
: This message provides
information as it relates to individual satellites
tracked, including
GPS
Week number of
ephemeris
collected,
GPS
Time of week [in seconds] that
ephemeris was collected, IODC, and Sub-frame 1,
2, & 3 data.
•
86 Channel Status: Provides receiver
channel
status
information and contains the
GPS
week,
GPS
Time
of Week, NCT-2100 Engine status, solution status,
number of satellites being tracked and the number
and identity of satellites used in solution,
PDOP
and
the satellite PRN .
•
A0 Alert Text Message: Details if a message has
been properly received and processed.
•
AE Identification Block: Details the receiver software
versions.
•
B0 Raw Measurement Data: Raw Measurement Data
Block that contains the GPS Week, GPS Time of
Week, Time Slew Indicator, Status,
Channel
Status,
CA
Pseudorange
, L1 Phase, P1-CA
Pseudorange
, P2-
CA
Pseudorange
, and L1 Phase. This data stream is
repeated for any additional satellite.
•
B1
PVT
: Provides
GPS
Week number, satellites used,
latitude, longitude, navigation mode, and
DOP
information.
4-32