Total posts : 45366
Regarding the bleed over of a strong transmitter into adjacent frequencies. That’s more a statement of the quality of your radio, rather than anything else. I know that my car radio will allow a little bleed over 200 Khz adjacent to the strong signal, but that strong signal disappears 400Khz over (no matter how strong it is). My weak Part 15 FM signal could not be heard 200 Khz over.
As for the BroadVision transmitter, I had several of them. They are Part 15 certified. Receiving the signal 3 houses down is not uncommon, depending on your lot sizes of course. You should get 200 feet or so range to an ordinary radio (and up to 600-800 feet range to a good car radio).