Furuno FV-110, Руководство оператора

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Calibration
5-6
With heading input or fixed heading, Inclined Orbit Satellite
1. The FV-110 starts the acquisition, searches for 10 seconds at the expected position. If
RX lock is detected the FV-110 goes to Tracking.
2. If no RX lock is detected, a box search pattern is started and the positions where RF
power can be received are stored.
Figure 5-5: Acquisition, search pattern for inclined orbit
3. The FV-110 checks each stored position for up to 10 seconds. If RX lock is detected
for more than 20% of the time, the FV-110 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
FV-110 goes to Tracking.
Figure 5-6: Acquisition, search pattern in gyro-free mode
FV-110 acquisition times
Table 5-3: FV-110 acquisition time
Activity
Inclination
0°
Inclination
1°
Inclination
2°
Inclination
3°
Inclination
4°
Initial search 10 s 10 s 10 s 10 s 10 s
Scan box pattern 5 s 10 s 15 s 25 s 30 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