I went by a known Ka source in Phoenix to test the off axis detection range. I picked up the Ka signal about .25 to .3 miles from the source ( a 35mph speed sign) seen at 0:09 seconds left in the vid on the right side.
Im not sure what is good or bad when you guys talk about off axis detection. This was 33.7 according to the GX. To me it seemed pretty good considering how far away it was.
[ame=http://s80.photobucket.com/albums/j184/gpracer1/?action=view¤t=GX65Ka337offaxis_0001.flv]GX65Ka337offaxis_0001.flv video by gpracer1 - Photobucket[/ame]