Do not have room to stack antennas in attic. However do have remote controlled Channel Master Rotator(controlled by MX 500). Works well, but sometimes I still get searching for digital signal. Have tried both of Channel Masters largest UHF antennas(bow and yagi). Both perform about the same. Still using Comcast HD receiver for local HD when antenna is flaky and using Directv sat for everything else. Still no local Fox support from Comcast for HD.