Porblem with sonar range

[Zuncha]

Hello, i have a problem when i want to estimate contact's range on hydrophone;

http://www.hapshack.com/images/InvaW.jpg

"Unable to estimate contact range" and 18100m is a false range!

I used TDW's patch.exe to fix hydrophone but it did not change.

My mods list:

http://www.hapshack.com/images/Xv2N1.jpg


Have you solution please?

[Zuncha]

No one get same problem?