Kaka.
Have you followed the updated TSS procedures for mounting the 440?
Supposedly, you have to earth bond every member on the sub first.
Then enure the 440 is mounted at least 1.25 metres from the sub.
And finally, ensure the whole thing is rigid – no raise/lower rams etc.
Had a survey rep insist we do all this a couple of years ago. The first two are a load of bull – get out of jail free cards for TSS when results don’t match the 440’s supposed capabilities( the old ‘it’s your sub, not our equipment’ argument).
However, we did see a marked improvement when we fixed the coil array rigidly to the sub and then cross braced them. Seems the 440 is that sensitive after a background comp, that any movement in the coils then registers the sub as a target as it has been compensated at a differnent position.
All in all, a pain in the a**e compared to the old 340. and not really that much better in practical terms.
I’m waiting with bated breath for someone from TSS to take the hump now.
