Final update to this post. Finally the repeater is working. After a coworker Kevin (WQWU443) recommended I take the duplexer to A.R. Communications in Monmouth County NJ. I have to say the owner of the company was really cool and showed me around the shop while they looked into what was wrong. After re-tuning the duplexer, they hooked the repeater up to the duplexer and found a ton of de-sence and the SWR sky high [same issue I was having at home.] They kept the system for the weekend and on Tuesday it was ready. Here are the problems they found: 1) A minor issue inside one of the "cans" of the duplexer. I am not sure how the insides of the flat packs look, but I was told there was a small dent or something causing some of the issue. They "swapped" sides putting the low frequency on the high side and high frequency on the low and were able to by-pass whatever the dent was doing. 2) The stock jumper's between the radio and the duplexer were causing some issues with loss. They replaced the jumpers free of charge. 3) They recommended I check my power supply as on their equipment was letting the TX side run 25-40 watts on low/hi power. At home, I checked and was only getting 17 watts only. Turns out that even though I have a 15A continuous power supply at 12.5V, the system requires 13.5 at 20A to work properly. For safety I ordered a 30A 13V power supply recommended by a few hams as a replacement. This should let me get full power output when it arrives. I also found a problem, and that is that the GR1225 seems to drop its TX power from 40 watts to less than one watt. It does transmit and I can hear it on a portable if I am within a few hundred yards, but the meter doesn't even kick on when I transmit. For the time being a back up repeater is in use and is showing results. The SWR is very low, 1.04 and a .0071 reflection which is MUCH better than the 19 I was getting. With the test unity antenna about 15 feet up at 17 watts and a very rf unfriendly area [a lot of trees and buildings] I was able to talk clear across town (about 4 miles.) Now before anyone says 'thats not that far' keep in mind that this is low power, no gain, low height and a congested area [buildings and trees] so I would think its reasonable. I want to thank everyone again, Especially Corey and Kevin and the guys at A.R. Communications. I've learned quite a bit from this whole experience and hope to learn a bit more while improving the system overall!