Thanks, I am a bit new to this so I don't have any practical bearings - having now looked at the loss figures (_http://www.webro.com/downloads/tvpage1.pdf), I guess at say ~30m, the loss for WF100, WF125 and WF165 is max ~10db, ~8db and ~6db - so only 4db diff between WF100 and WF165, 2db...