I have been running a repeater here in south Florida, I have been using an RFS compact duplexer the whole time, but it seems to be the source of my high SWR readings, I acquired this unit with the Uniden repeater and had it tuned by a local HAM. so I purchased a Phelps Dodge 4 can style duplexer tuned to TX471 MHZ RX 474 MHZ , I chose based on technicians recommendation and I have arranged to have it shipped directly to the technician for a professional tune. Now with questions, Should I have going with a 6 can set? are full can style better than the small portable duplexers? some units use small cheap looking coax. yet others use LMR400, any difference? I know this is a small forum, but I like the people here, so ring in guys.