Tracking Speeds are determined by the radios refresh of data and polling rate combined with the beam width of the antenna being used. A typical system with a 200 ms radio refresh polling rate and 6 degree beam width antenna can track at 1 degree per second in Azimuth and 0.5 degrees per second in elevation.
"How fast can the GPS Tracking Stabilizer react to movements of the vehicle it is mounted to?"
Stabilization on a narrow beam is around 5-6 deg/s in azimuth, 2-3 deg/s in elevation.
"What’s the benefit of the GPS Tracking Stabilizer after the system is locked on the target?"
The GPS Tracking Stabilizer allows for GPS Assisted failover action to maintain and confirm the antenna is on the main lobe. Additionally, the GPS Targeting Stabilizer is required to compensate for vehicle/vessel movement (i.e. pitch, roll, yaw).
"When you have more than one possible target (eg. base stations), how are different targets programmed/prioritized, and how does the system behave when moving from on locked target to another?"
The system will move to the closest distance target and attempt a connection. If a connection is established then the system will continue to track the signal until the Link Budget parameters/criteria are no longer acceptable. If no connection is made or the link budget parameters are not met the system will attempt the next closest GPS Target in the list etc.
"Do we need the GPS Tracking Stabilizer for slow moving vessels such as ships?"
Yes, The GPS Targeting Stabilizer is an essential component for all mobile/nomadic tracking scenarios. The GPS Tracking Stabilizer is utilized to limit the amount of link down time and eliminate end user interaction with the system to maintain a link.
"What happens when the change of location is beyond the performance characteristics?"
GPS Assistance will occur to realign the system to the specified target. In the case that the link falls below the specified link budget configurations of the BATS System the BATS System will recalculate the proper bearing location to point to the target and will move to that calculated position.
"If the signal is lost how long does it take to re-synchronize or re-capture the direction to the equipment?"
On average less than 30 seconds, at maximum less than 90 seconds.
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