Maybe its my location, however, channel 10 and 11 even channel 7 are being recieved at a level around 45% that should provide the digital tvs (2) to decode this but I guess that my antenna view and the multitude of highrises south of me are causing serious VHF reflections/multipath. The "nulls" at these lower frequencies are wider and possibly deeper. These ghosts were very apparent when chn 9 & 5 were analogue. The UHF analogue chn 17, 19 23, 25 etc were always OK.