Geographically close to each other ?
They can be in the same room of the same building, with their antennas on the same roof or tower.
Close to each other in carrier frequency ?
Your radio probably can't separate them if they're less than maybe 400 KHz apart.
Physically close to you ?
There's no danger to you if you're standing in the room where the transmitter is installed,
but you probably don't want to stand in front of the antenna for too long.
Driving past the station's transmitting antenna is no problem for your car radio.
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Not unless you hard-wire them together. Just driving by an FM transmitter, no matter how close, won't hurt the radio.
Yes. FM transmitters are still relevant in today's market. They are still being sold at retail stores because they may be needed for independent projects and radio shows.
thor mar fow
AM radio is KHz FM radio is MHz AM radio can cover the world. FM radio can cover a county. AM radio is excellent in communication. FM radio is completely worthless, except for good sound quality. AM radio doesn't have as good sound quality as FM. FM is much higher on the radio spectrum than AM.
The main difference between AM and FM radio is the dial-in number and the amount of static each receive. AM radio preceded FM radio, with FM becoming popular in the 1950s.