Hydrophone Initial Audio Tests

IMG 0382

This was my first outing recording with the hydrophone. Firstly I wanted to see how far the hydrophone would pick something up. A canal boat passed on the long straight after froncysyllte aqueduct, so I continues to record until it arrived at the turrning bay at the bottom. The sound wave wouldhave been facing the hydrophone all the way until the canal boat turned, then the sound disapeared. My estimate for the distance on this is about 500 to 600 yards, and interestingly sonogram shows no signal variance at the end even though it can still be heard.

© Huw McGregor 2015