Interfering with the attic antenna sounds strange, since I assume there is quite some distance between the R15 and the attic antenna.Buffa said:It interferes with our attic antenna too, but that's no big deal since the locals are of course on the unit.
Regarding AM radio interference ... it is possible, but I would be surprised unless the R15 and AM radio are next to each other or plugged into the same outlet. Radio Shack sells AM filters if they are plugged into the same outlet.
I have an AM radio I use frequently located about 10 feet from my R15, plugged into separate outlets, but on the same house circuit. I often listen to the radio while watching the R15. I've never had an interference issue.