It would be quite possible with some milliwatts and a low down antenna. Unless your antenna was on a chimney of a house on a clear hill it would be attenuated massively through all the local domestic walls if you are in a built up area.. you could just test it at different heights... start at 2m off ground and check around the neighbourhood. I bet 150 milliwatt would barely go 300m with an antenna low to the ground.
when I tested 1w, brough the aerial down so the aerial would of been 1 meter off the ground, indoors too, there was nothing there on the remote reciever, I guess that was an experiment.
i’ve been thinking of getting an aerial outside, it seems were ever I move it to in the loft maybe start to get some mulitpath, or start to loose some signals, while others maybe increase, is mondo annoying, I removed the tv lead that went all the way across the top of the loft, it can be moved down the loft, there does seem to be no sweet spot. I’m wondering with it been just a single story, if having an aerial at the same height outdoors would cure it.
Maybe get an installer to put one of those folded things other people have on the tv pole, would be inconspicous, I don’t suppose afew mw would go very far, it might not pick up that well either. Any aerial up there would need an installer would be awkard, not knowing it would work until it was up.
I suppose walking round with the aerial on a pole could be done see if it works. If you’ve got a pole that attaches to the wall, with my own aerial on top, I don’t know see how it could be done, attached to the wall with the aerial on top, but there would barely any wind resistance if it could be done, (visible obviously) to get it above the loft would need an extra 2meters would mean wind resistance, I guess this is a problem.
An aerial could sit behide the fence it would be barely off ground, any low power mw signal wouldn’t go far, unless there was some weird sweet spot close to the ground I doubt it work well for hearing anything. I was able to get an aerial through the roof at the old house, the only vents here are low down dosen’t seem like anyway.
I suppose the most structally sound way would be to have a hole near the apex of the roof, the aerial can go through and the pole holding it up would be in the loft not have the wind resistence, asumming it would work the aerial could sit outside, don’t see how that could done. I was going to ask on rn, don’t know if i’d get anywere with it, I don’t know how i’m going to approach the subject of getting an aerial semi permenant outside.
it would nice to have a 1w, make playlists, put programes from older stations, with nice sounding stereo, beable to hear it through a remote reciever know its your own would be something,

its not something you can have.