KVH Industries TracVision Cruiser User Manual page 30

Operation
Conical Scan Tracking
The antenna control unit generates a conical scanning function
to maintain peak signal strength to the receiver and to update
the satellite's position. When conical scan tracking is active, the
antenna moves continually with a circular motion to sweep
across the satellite's peak signal. The signal strength is then fed
back to the control circuits to keep coming back to the direction
of the strongest signal.
If the satellite signal is lost while the system is in conical scan
track mode, the control software imposes a 60-second time-out
delay. If the signal is not regained during that time, the
antenna reverts to the Reacquisition Search to start looking for
the satellite signal.
54-0144 Rev. C
3-3