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Fifi · 02-19-19, 02:54 PM

Received your info

So with the Porpoise (before June 42) the lines drawn while surfaced are the sonar « active » and not the hydrophone « passive ».
After June 42, they should be hydrophone, right?
They look the same anyway…maybe a range difference?

02-19-19, 02:54 PM	#7546
Fifi Navy Seal Join Date: Dec 2012 Location: France Posts: 5,742 Downloads: 456 Uploads: 0	Received your info So with the Porpoise (before June 42) the lines drawn while surfaced are the sonar « active » and not the hydrophone « passive ». After June 42, they should be hydrophone, right? They look the same anyway…maybe a range difference? __________________ https://www.mediafire.com/file/gvwii...N_V5.7.7z/file