NavCom Sapphire Rev.J - Manual (Page 371)

Sapphire Technical Reference Manual Rev. J
371
This field represents the current StarFire downlink beam indicator. Table 198 shows the
possible values for the StarFire beam indicator.
Table 198: StarFire Beam Indicator
Network Code (XX) Designation Satellite ID Longitude Uplink Site
Net 1
00 N/A N/A Unknown Unknown
01 4F3 402 98W Laurentides
02 4F2 525 25E Burum
03 4F1 643 143.5E Auckland
Net 2
04 3F3 678 178E Santa Paula, CA
05 3F4 446 54W Southbury
06 3F1 564 64E Perth
07 3F2 484 15.5W Southbury
09 N/A N/A Manual Override Unknown
2.110.3 Current StarFire signal status
This value indicates the tracking status of the StarFire Channel. If the channel is not in
use the value will be 1. When the signal is locked and data bits are being produced the
value will be 9. Table 199 shows StarFire tracking status values.
Table 199: StarFire Tracking Status
Code Description
0 Wait for power
1 Processing is disabled
2 Wait for AGC to settle
3 Start of processing
4 Signal detection
5 Signal detection failed
6 Frequency verify
7 Signal Acquisition with AFC and code pull-in
8 AFC plus Costas pull-in
9 Locked creating data bits
2.110.4 Current StarFire signal strength (Eb/NØ)
This field represents the signal to noise ratio for the StarFire channel in db/Hz. The LSB
represents 0.25 db/Hz.

Es/N0 = Eb/N0 – 3(dB)
C/N0 = Eb/N0 + 27.8(dB)
2.110.5 Reserved