Water Velocity

If Subsonus is fitted to a vessel or vehicle that is capable of traveling at speed, the velocity of the water flowing over Subsonus should be considered. As the velocity increases, the noise produced by water flow can reduce the acoustic performance of Subsonus. Typically speeds below 5kn will not affect performance.

Speeds between 5 and 10kn will experience a reduction in acoustic sensitivity (tracking range) and increased measurement noise (position error). The impact can be monitored using the signal performance monitoring fields available in the track packet. For advice about applications where Subsonus could be subjected to water speeds above 10 knots. Contact support@advancednavigation.com before beginning operation.