<div dir="ltr"><div class="gmail_quote">Interesting part of the spectrum.  <br><br><div dir="ltr"><a href="http://www.vlf.it/submarine/sbmarine.html" target="_blank">http://www.vlf.it/submarine/sbmarine.html</a><span class=""><font color="#888888"><br><div><br></div><div><span style="color:rgb(34,34,34)">-Tad</span><br></div></font></span></div></div></div>