NavCom Sapphire Rev.J - Manual (Page 374)

Sapphire Technical Reference Manual Rev. J
374
Byte
Position
Bit
Position
Name
Valid
Range
Description
0 – Unhealthy
1 – Healthy
1-2 Network ID 0 – 3
Value and meaning
0 – Net 1
1 – Net 2
2 to 3 – Reserved
0
Channel
(bit 16 – MSB)
0-
70000
Channel number
Bit 0 is LSB and bit 16 is MSB
1 0-7
Channel
(bits 8-15)
- -
2 0-7
Channel
(bits 0-7)
- -
3 0-7
Longitude
(bits 4-11)
-1800
to 1800
Satellite longitude in degrees
Scale = (0.1)
4 4-7
Longitude
(bits 0-3)
- -
0-3
Service Flags
(bits 4-7)
-
Bit index and meaning
0 – StarFire GNSS
1 to 7 – Reserved
5 4-7
Service Flags
(bits 0-3)
- -
1-3
Reserved
(bits 0-2)
0 Time Included 0 – 1
0 – No week or time information included
1 – Week and time included and will be in the next
three bytes
6 0-7 Week (bits 2-9)
0 –
1023
GPS week number
Optional – present just prior to a change
7 6-7 Week (bits 0-1) -
0-5
TOW
(in minutes)
(bits 8-13)
0 –
10079
Scale = (86400/60*7)
Optional – present just prior to a change
8 0-7
TOW
(in minutes)
(bits 0-7)
-