I'm considering making some changes to my antenna system, so I've been doing a lot of thinking. I know, that was my first mistake. Anyway, I typically work three bands in my local area, and I have never had any trouble getting into any station that I want to talk to, either via repeater, or simplex. I currently have only one antenna, a homebrew tribander for 2m/220/440. The problem that I am facing right now is that I am starting to get into DSTAR, and the only DSTAR repeater near enough to me is not quite in range. Sometimes I get in ok, but other times during the same qso, I get reports that I have "fallen off the cliff," and my signal has dropped off (R2D2). I believe that I could easily fix this with a dedicated 70cm yagi pointed at the repeater. The design of my house does not allow for me to easily bring another feedline in. I would have to either make the current hole in the wall bigger, or drill another hole in the wall. I don't like either of those options so I was wondering if it would be possible to connect the tribander and the yagi to one feedline using a tee. How would this affect my signal on all three bands? I am guessing that the 2m signal would find the 2m radiator and the 220 signal would find the 220 radiator. What would the 70cm signal do? Would it split and radiate with lower power to both antennas? Could the tribander and the yagi somehow possibly be phased for increased gain?