1.0 link Rainbow Dash Network http://rainbowdash.net/ Techdisk (techdisk) http://rainbowdash.net/techdisk http://rainbowdash.net/notice/3760061 @<span class="vcard"><a href="http://rainbowdash.net/user/32489" class="url" title="Someone Else"><span class="fn nickname mention">anobjectofinterest</span></a></span> Well in that case it would work absolutely fine for FM. In fact the Raspberry Pi can transmit FM using square waves on it's own, and it sounds fine, though you can hear the transmission on a bunch of other channels.