COBHAM SAILOR 900 - Figure 6-5: Acquisition, Search Pattern for Inclined Orbit; Figure 6-6: Acquisition, Search Pattern in Gyro-Free Mode; Table 6-3: Acquisition Time

Calibration
6-6 Chapter 6: Configuration 98-150471-A02
2. If no RX lock is detected, a box search pattern is started and the positions where RF
power can be received are stored.
3. The antenna checks each stored position for up to 10 seconds. If RX lock is detected for
more than 20% of the time, the antenna goes to Tracking.
Without heading input and not fixed heading (Gyro-free)
1. A box search pattern is started and the positions with reception of RF power are
checked for up to 10 seconds. If RX lock is detected for more than 20% of the time, the
antenna goes to Tracking.
Acquisition times
Figure 6-5: Acquisition, search pattern for inclined orbit
Figure 6-6: Acquisition, search pattern in gyro-free mode
Activity/Inclination 0° 1° 2° 3° 4°
Initial search 10 s 10 s 10 s 10 s 10 s
Scan box pattern 5 s 10 s15 s25 s30 s
Validate result (10 s per
result)
10 - 30
s
10 - 30
s
10 - 30
s
10 - 30
s
10 - 30
s
Max. total time 25 - 45
s
30 - 50
s
35 - 55
s
45 - 65
s
50 - 70
s
Table 6-3: Acquisition time
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SAILOR900HP.book Page 6 Monday, July 18, 2016 12:44 PM