I have taken some screen shots from my AIM4170C antenna analyser of my corner window line fed horizontal loop showing its mismatch on 160 meters, would anyone be able to suggest what to do with the feeder length to perhaps bring it into resonance please? I have, for some considerable time, been using the feeder, strapped together at the base, via a matching and loading coil, with the loop as the "top hat" on LF only. I now want to unstrap the window line feeder and resonate it on top band. The analyser shots seem bizarre but I calibrated it before I started. 3 shots, one at the shack end of the window line feeder, no balun, one same place with 4 to 1 balun, one same place again with 9 to 1 balun. Comments greatly appreciated, thanks.