Who's used these, and got any practical experience of range performance when there's a wall/window in the way? (FYI the transmitters don't use a battery, but get their energy by giving a big thwack to a lump of piezo).
Having many years in radio electronics, I'm well enough aware that manufacturers claims will be based on best case line-of sight (open air, they claim 160M), or indoors (they claim 30M).
This is 400MHz so it's well attenuated by building materials. My gut feeling tells me that with a cavity wall plus a window in the way, a range of ~ 6 metres in this case could be very borderline.
Naturally no-one at TLC has any idea and the manufacturers don't provide any further info.
So who's used one?
I might have to go for a "real" radio switch, but that adds cost which may not wash.
- I'm trying to cheat doing it the proper way since it's a set of outdoor lighting running off a separate detached garage supply. We are looking for a switch in the nearest adjacent part of the main house.
Having many years in radio electronics, I'm well enough aware that manufacturers claims will be based on best case line-of sight (open air, they claim 160M), or indoors (they claim 30M).
This is 400MHz so it's well attenuated by building materials. My gut feeling tells me that with a cavity wall plus a window in the way, a range of ~ 6 metres in this case could be very borderline.
Naturally no-one at TLC has any idea and the manufacturers don't provide any further info.
So who's used one?
I might have to go for a "real" radio switch, but that adds cost which may not wash.
- I'm trying to cheat doing it the proper way since it's a set of outdoor lighting running off a separate detached garage supply. We are looking for a switch in the nearest adjacent part of the main house.