I received my Blonder Tongue AM-60-550B today, it was preset to 16 on the dip switches.. I'm trying to go into the UHF channels and can't get anything out of UHF.. and have the same antenna set up with the loop antenna as he has in this video.. I don't have a manual or dip switch card but I did download the card from here
http://antiqueradio.org/HomeTVTransmitter.htm.. I'm able set presents for the single digit channels, but on the UHF channels I can't get anything out of it, I think with the UHF the left side is used to add up for first digit and right side is used for the second.. Anyways I tried different combinations, and nothing.. This guy in the video is able to get strong signal with just a loop antenna and not even any antennas on his sets..
https://www.youtube.com/watch?v=V3k4e-0_Wy8