Total posts : 45366
I’ve found the C Crane transmitter highly variable in its range (I’ve owned several of the original models – in my reading, it seemed that everyone went straight to the ‘secret’ power adjustment in the battery compartment and cranked it up to get semi-decent range; otherwise, you might get a few feet range, or you might cover your house, based on the luck of the draw).
I also suspect the Whole House transmitter is the same. I only have a Whole House 2, and it might be a dud, but it performs very poorly, far worse than other Part 15 certified devices I’ve owned and own.
When you have a mass produced transmitter, and it is certified to produce at maximum a certain field strength, you want to ensure that each and every one is under that maximum. I know if I were doing it I would have a fudge factor built in to make sure that no transmitter goes over that limit.