Table 10-3 Bin 2 Message
Name Components Type Bytes Value
MaskSatsTracked A mask of satellites tracked by
the GPS. Bit 0 corresponds to
the GPS satellite with PRN 1.
Unsigned
long
4 Individual bits
represent satellites
MaskSatsUsed A mask of satellites used in the
GPS solution. Bit 0
corresponds to the GPS
satellite with PRN 1.
Unsigned
long
4 Individual bits
represent satellites
GPSUtcDiff Whole seconds between UTC
and GPS time (GPS minus UTC)
Unsigned
short
2 Positive
HDOPTimes10 Horizontal dilution of precision
scaled by 10 (0.1 units)
Unsigned
short
2 Positive
VDOPTimes10 Vertical Dilution of precision
scaled by 10 (0.1 units)
Unsigned
short
2 Positive
WAAS PRN
bitmask
PRN and tracked or used status
masks
Unsigned
short
2 See below
WAAS PRN bit mask.
Bit 00 Mask of satellites tracked by first WAAS satellite
Bit 01 Mask of satellites tracked by second WAAS satellite
Bit 02 Mask of satellites used by first WAAS satellite
Bit 03 Mask of satellites used by second WAAS satellite
Bit 04 Unused
Bit 05-09 Value used to find PRN of first WAAS satellite (This value +
120 = PRN)
Bit 10-14 Value used to find PRN of second WAAS satellite (This
value + 120 = PRN)
Bit 15 Unused
10.4 Bin 80