<html><head></head><body><div style="color:#000; background-color:#fff; font-family:HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif;font-size:12px"><div id="yui_3_16_0_ym19_1_1464811365991_2918"><span>Hi Antoine,</span></div><div id="yui_3_16_0_ym19_1_1464811365991_2919"><span>Gamma has a pinger with both 9hz and 27hz all I hear is a click sound, no big deal at 27hz.</span></div><div id="yui_3_16_0_ym19_1_1464811365991_2919"><span>Hank</span></div> <div class="qtdSeparateBR"><br><br></div><div class="yahoo_quoted" style="display: block;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 12px;"> <div style="font-family: HelveticaNeue, Helvetica Neue, Helvetica, Arial, Lucida Grande, sans-serif; font-size: 16px;"> <div dir="ltr"><font size="2" face="Arial"> On Wednesday, June 1, 2016 1:41 PM, Antoine Delafargue via Personal_Submersibles <personal_submersibles@psubs.org> wrote:<br></font></div> <br><br> <div class="y_msg_container"><div id="yiv2904916688"><div dir="ltr">Hello all, <div>I am looking after acoustic pingers to locate my sub, with the lowest frequency possible to get the longest range. However, I fear low frequency might be audible inside the sub (or giving head aches) especially given the power emitted.</div><div>A youtube hearing test shows me I cant hear frequencies beyond 14kHz... so I am aiming for 16kHz</div><div><br></div><div>Have any of you had experience with these low frequencies <16kHz in a sub? <br></div><div><br></div><div>regards</div><div>Antoine</div></div></div><br>_______________________________________________<br>Personal_Submersibles mailing list<br><a ymailto="mailto:Personal_Submersibles@psubs.org" href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br><br><br></div> </div> </div> </div></div></body></html>