Microformat ex. 2: with frequency as a property of vcard

<div class="vcard">
<b class="fn org">Heart FM (Sussex)</b>
<i class="frequency">
102.4<abbr class="unit" title="Megahertz">MHz</abbr>
<span class="band">FM</span>
</i>
(<abbr title="50.9761;0.2293" class="geo">Eastbourne</abbr>)
</div>