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Great work! How well did it pick up? David Bartsch > Date: Sat, 6 Mar 2010 19:41:57 -0800 > Subject: [PSUBS-MAILIST] Hydrophone test > From: jimrudholm@gmail.com > To: personal_submersibles@psubs.org > > I have tested all the BQR-2a hydrophones in water. They were connected > to a Radio Shack 1 watt PA amp using the mic input. Its a Realistic 1 > watt speaker/amp, model 32-2040. All have the same output (by ear) > when thumping the steel reservoir side. > One hydrophone was cut removing a short strip of the rubber covering. > There is a potting compound which could be a silicone sealant. > Photo attached. > Jim R. Hotmail: Trusted email with powerful SPAM protection. Sign up now. |