Hello, DTesch357
Have you moved since your last thread, or are you still in the same location?
Help a Newbie with Chicago Reception!
http://forum.tvfool.com/showthread.php?t=14653
There is a big difference in signal strength between your two reports because of terrain obstructions; the higher the antenna is, the better.
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I'd also like to make sure this antenna picks up CBS, which is a VHF (I think? The hard one to get) (Channel 2) station and notoriously hard to get ahold of in the suburbs.
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Yes, WBBM has been hard to get, especially since the transition from analog to digital. After the transition, it was on VHF-Low real channel 3 and reception was difficult because of the high noise level on VHF-Low that caused interference to its digital signal.
It is now transmitted on VHF-High real channel 12 with its old virtual channel number 2.1 to retain its identity to viewers.
I suggest you try the Winegard HD7694P in the attic first in different locations aimed at 110 degrees magnetic with just one TV. Don't drill any holes yet. If the signals are too weak, add a preamp like the Antennas Direct Juice, Channel Master 7778, or RCA TVPRAMP1R.
If you can't get good reception for one TV even with a preamp, you can try separate UHF and VHF antennas with more gain in the attic. If it still doesn't work, you will need to move the 7694 outside.
Once you have good reception for one TV, then add a 4-way passive splitter. If the signals are too weak with the splitter, replace the splitter with a Channel Master 3414 distribution amp, which is a splitter and amp combined.
Are there any trees or other buildings in the signal path from Chicago?