Hobbies that share something in common are model railroading and model radio broadcasting. The common point is the small scale of the equipment and its range.
Model trains are able to run on schedule but passengers are poorly served because they are too large to squeeze inside the rail cars.
Model radio stations also run on schedule, but full size listeners are unable to cluster close enough to the transmitter to provide a sizable audience, because the micro-signal has such little reach.
The best location for part 15 broadcasting in the entire U.S. would be Dwarf, Kentucky, named after Jememiah Combs whose nickname "Short Jerry" pointed to his stature.
https://en.wikipedia.org/wiki/Dwarf,_Kentucky
Many more short people can reside within range of a Part 15 radio station, except that they all have Napoleon complexes, which makes for topsy turvey listener relations.
A 3 meter high antenna on a model train board would be impressive indeed!
Neil
"A 3 meter high antenna on a model train board would be impressive indeed!" - said Neil Radio8Z.
Actually, when I almost built my N-scale train set which would have provided express service between office and kitchen, I figured the tower could be planted on the floor, come up through a hole in the table, and reach to the ceiling. The part of the tower under the table would be painted black, and the tower atop the table would be aviation white and red/orange. with blinking LED's.
Now a'days with remote controlled drones there could be air traffic.
You could have one set of radio stations in Front Room City, and other stations back in Kitchen Heights.
All I have now is weekly bus service through the house.