SUBSIM Radio Room Forums - View Single Post - About Discrimination of hydrophone sound.

Trav_R · 11-02-05, 03:34 AM

I have the same question. Hopefully an SH3 hydrophone expert will be able to tell us a better method. For now, I have to plot the bearing and estimated range on the map. Then I use the compass tool to make a circle around the estimated position that signifies the error in my range estimate. If the target is very far away, I make a large circle, about 4 km or so. If it's closer, I make about a 2km circle. Once you get a few circles of estimated positions over a period of an hour or two, you have a fair idea of course and speed. Not good enough for a torpedo solution, but good enough to set up a nice intercept ahead of the target, where you can do your final TDC calculations.

Like I said, I'm with you and I'd like to know how to tell whether it's coming or going just by listening and not having to plot points.

11-02-05, 03:34 AM	#2
Trav_R Ensign Join Date: Oct 2005 Location: Oklahoma, USA Posts: 227 Downloads: 0 Uploads: 0	I have the same question. Hopefully an SH3 hydrophone expert will be able to tell us a better method. For now, I have to plot the bearing and estimated range on the map. Then I use the compass tool to make a circle around the estimated position that signifies the error in my range estimate. If the target is very far away, I make a large circle, about 4 km or so. If it's closer, I make about a 2km circle. Once you get a few circles of estimated positions over a period of an hour or two, you have a fair idea of course and speed. Not good enough for a torpedo solution, but good enough to set up a nice intercept ahead of the target, where you can do your final TDC calculations. Like I said, I'm with you and I'd like to know how to tell whether it's coming or going just by listening and not having to plot points.