FFG Towed Sonar Qustion

PeriscopeDepth · 03-11-06, 11:18 PM

Good to see so many new players.

Resolving bearing ambiguity is simple once you grasp the concept. The way the signal is processed, the TA can't tell which side the signal is coming from. So you have to resolve the bearing ambiguity.

So let's say you have a contact and you turn left to resolve. If the contact moves up the waterfall display it is on the portside. You can tell this because the contact is moving UP the waterfall display and therefore you must be turning towards it. If it were to move down, then you would be turning away from it and it would be on your starboard side.

Did that do it?

PD

03-11-06, 11:18 PM	#2
PeriscopeDepth Sea Lord Join Date: Jul 2002 Location: Pacific NW Posts: 1,894 Downloads: 6 Uploads: 0	Good to see so many new players. Resolving bearing ambiguity is simple once you grasp the concept. The way the signal is processed, the TA can't tell which side the signal is coming from. So you have to resolve the bearing ambiguity. So let's say you have a contact and you turn left to resolve. If the contact moves up the waterfall display it is on the portside. You can tell this because the contact is moving UP the waterfall display and therefore you must be turning towards it. If it were to move down, then you would be turning away from it and it would be on your starboard side. Did that do it? PD