Being an APRS enthusiast, when Curtis told me about the RS-UV3, I was really excited.  I already run an igate; KB1MTS.  However I was looking to add a second iGate for 145.825, keep costs low, and keep the foot print for the entire device really small (plus as a bonus, something to show at Dayton this year).  My current solution uses a Kenwood radio, a TNC-X, a USB adapter, and Beagle Bone Black which is a spaghetti mess of cables for data and power.  For my new iGate, I decided I wanted something that fit in a box, and only had a single power connection for everything.  This is Part 1 of a series about what I did for Dayton and has been in testing a compact and reliable solution.