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</o:shapelayout></xml><![endif]--></head><body lang=CS link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Zdravím vespolek,<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>měl by někdo nápad, jak dostat zvuk pod hladinou do vodního prostředí? Stačila by hloubka do 1m, předpokládám frekvenční rozsah do 4kHz. Kvalita by nemusela být zásadní. Dosah aspoň pár metrů.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>Děkuji a s pozdravem JK<o:p></o:p></p></div></body></html>