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irish1958 · 01-18-07, 09:40 AM

Before the days of noise canceling and acoustic isolation headphones, I suspect the hydrophone station had a lot of ambient noise to deal with.

01-18-07, 09:40 AM	#7
irish1958 Ocean Warrior Join Date: Apr 2005 Location: Carmel, Indiana Posts: 3,250 Downloads: 320 Uploads: 11	Noise Before the days of noise canceling and acoustic isolation headphones, I suspect the hydrophone station had a lot of ambient noise to deal with. __________________ Irish1958