Yet another .. doesn't russian active sonars seem to you next to useless ? They dont have time averaging so contact si always sunk in the noise.
There is also one old problem with all active sonars - you always hear returning ping even if the return is so weak it won't display. And you alwas hear it at full volume (you can't hear dim return). By the sound you can have rough range for the target, even if the target is at max active sonar range. You can count targets very far away (well, this can go wrong with bottom bounce). And I always get frustrated when you ping, I hear the return, but I don't see the dot on screen (very common especially with russian subs).
|