Hi Bob, The easiest is to ditch the 10W PA and get the Alex Filters from TAPR. Jean-Claude PJ2BVU -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.openhpsdr.org/pipermail/hpsdr-openhpsdr.org/attachments/20130602/1d427a1a/attachment-0004.htm>