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Search: Posts Made By: Astrax
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Forum: Rumours & News
7th Apr 2014, 23:22
Replies: 11,831
Views: 24,208,505
Posted By Astrax

33.3 KHz rather than 37.5 KHz

It is well known that a transducer changes the resonance frequency under pressure. Without knowing the ULBs construction or other reasons, I can imagine that the design goal is to get the highest...
Forum: Rumours & News
6th Apr 2014, 04:33
Replies: 11,831
Views: 24,208,505
Posted By Astrax

Not a continuous tone - Agree

http://rjeint.com/pdf/DK120.PDF
and the 8.5 Khz
http://www.radiantpowercorp.com/files/news/Low%20Frequency%20Pinger%20Cut%20Sheet%202013%2002242013042501338125.pdf
Forum: Rumours & News
21st Mar 2014, 05:17
Replies: 11,831
Views: 24,208,505
Posted By Astrax

Rabbitwear said Old FDR had stainless steel...

Rabbitwear said
Old FDR had stainless steel tape , I think modern technology would be solid state and possibly more easily destroyed.

Guess not.
Magnetic properties change with temperature and...
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