Sonar operator in GWX, is he asleep?

[rocco]

Hello,

I just installed GWX a few days ago, I have a problem with my sonarman.

The seas are calm (and I mean dead calm, 0 m/sec), the operator has
the sonar qualification, but he can't hear past about 8 km. I had a Large
Cargo steaming at 6 knots on a bearing of about 272 (almost dead to port).
For some reason the sonar operator didn't pick him up until he was inside
8 km .

I just followed him with the scope, but still...

I think this is why I had such a hard time intercepting convoys so far, one convoy
I set intercepts that definitely should have found them (I even reloaded several
times to try again and again) but couldn't locate them (seas were moderate but
fog was heavy).

Is this a common or known problem in GWX?

edit: I was moving at ahead slow, 3 knots.

Thanks,

Rocco