Schreeching sound in hydrophone when stopped with GWX
 

Ive just installed SH3 again after 1 year away, and I wanted to test the GWX 2.0 version. Everything works fine except when Im using the hydrophone and the sub is stopped. Whenever I order "full stop" and is listening on the hydrophone, a really annoying/screeching sound starts to play. This makes it impossible for me to hear anything in the hydrophone except for the loud sound. If I order "1/3 ahead", then the sound stops and the hydrophone seems to work as it should. If I move away from the hydrophone station, then the sound stops.

To me it sounds (pun intended) that there is a certain sound that should be played when listening on the hydrophone and the sub is stopped. Perhaps the sound is screwed up somehow.

Is there anyone that have heard the same thing? Or is there anyone that could point out the sound file that is played, so I can test with another file?