NavCom Sapphire Rev.J - Manual (Page 370)

Sapphire Technical Reference Manual Rev. J
370
2.110 SFSTATUS1B (Ver. 1; v0.1.8 & 2; v1.0.0.4; Ver. 2 & 3; v2.2.0.1, Ver. 5,
v3.2.9) (Binary)
SF-3050 Sapphire SF-3040
This record shows the status of StarFire signals. The body of the SFSTATUS1B message is
listed in Table 197 with descriptions of the fields in the sections indicated.
Table 197: SFSTATUS1B Binary Message Data
Data Item (35 Bytes) Data Type Section
Current StarFire channel number U32 2.110.1
Current StarFire downlink beam indicator U08 2.110.2
Current StarFire signal status U08 2.110.3
Current StarFire signal strength (Eb/N0) R32 2.110.4
Reserved R32 2.110.5
Good packet counts (percentage) R32 2.110.6
Idle packet counts (percentage) R32 2.110.7
Re-synchronization counts U32 2.110.8
Reserved R32 2.110.9
StarFire license status (TBD) U08 2.110.10
Reserved U32 0
External HubID (ver 5) U08 2.106.11
2.110.1 Current StarFire satellite ID
(Version 1)
This field represents the current StarFire satellite ID, in the range 320 to 680. This value
is calculated by adding the satellite longitude to 500. For example, for the satellite at 98
West Longitude, this value becomes 500 + (-98), or 402, and for the satellite at 109 East
Longitude. It becomes 500 + 109 = 609.
(Version 2)
This field represents the current StarFire satellite ID, as described above for Version 1,
shifted up to occupy bits 31:22. Bits 20:0 are reserved for factory use
. Bit 21 is a “valid”
bit, meaning the ID is valid: “1” indicates valid, “0” indicates invalid.
Bits Description
31:22 StarFire satellite ID (range = 320 – 680)
21 ID valid (1 = valid; 0 = invalid)
20:0 Reserved
2.110.2 Current StarFire downlink beam indicator