Inmarsat GX-9 Operating Manual page 35

Additional Information on the various antenna parameters (ATB states) are shown below:
# # # # State name State name State name State name
0 INIT_ST
1 IDLE_ST
2 AZ_SEEK1_ST
3 AZ_SEEK2_ST
4 AZ_SEEK_ELEVATION_ST
5 TR_TUNE_EL_ST
6 TR_TUNE_PLL_ST
7 TRACK_ST
8 BLOCK_ST
9 FREEZE_ST
10 0x0A) TEST_ST
The field at the bottom of the page is true/false indicating whether the antenna is tracking (i.e. in states 5,
6 or 7).
The frequency is the frequency of the global beam. Possible values are the primary and secondary
frequencies of the 3 satellites.
Satellite ID Satellite
Longitude
I4-F1 IOR 64.0 E
I4-F1 APAC 143.5 E
I4-F2 AOR 53.0 W
I4-F2 EMEA 25.0 E
I4-F3 AMER 98.0W
Glocom GX-9 (FB250 Class) Operating Manual
State Description State Description State Description State Description
Initial state
Wait on a frequency from the TU
Determine min/max signal levels in a full sky scan
Find azimuth direction
Determine min/max signal levels on a single elevation
Track and tune elevation state
Track and tune PLL state
Track state
Blocked state
Antenna has stopped all motors
Test state
Primary
Freq kHz Freq kHz
1537485
1537485
1537920
1537920
1537070
Alternate
1540825 Old position
1540825 New position
1541115 Old position
1541115 New position
1540730 New Satellite
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