I am trying to decide on a duplexer for a 900Mhz portable repeater made from a pair of Maxtracs. I have found several on eBay that seem suitable, but if any of the guru's on here have input I would appreciate hearing your thoughts since I'm not usre which to choose. These are the ones I'm looking at.... http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=250327529615&ssPageName=STRK:MEWA:IT&ih=015 http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=310101567541&ssPageName=STRK:MEWA:IT&ih=021 http://cgi.ebay.com/ws/eBayISAPI.dll?ViewItem&rd=1&item=250315811678&ssPageName=STRK:MEWA:IT&ih=015 Thanks and 73, Dan N8DJP