Total posts : 45366
Greg and all,
Sorry, I just assumed you were talking about AM. A few questions which probably don’t have a right or wrong answer but I would be interested in your thoughts. What range do you think you could achieve with 1 watt on FM and be thoughtful because the range depends on more than just the power? Would this meet the needs of the micro broadcasters as well as the intended audience?
Jim added some good information. If we just limit the talk to AM for now then I would agree with his comments about usable range. Forty five years ago I ran a tube part 15 transmitter and verified an in home listener who was about 300 feet from my transmitter. Today, I use a SSTRAN unit with an indoor antenna and my car radio range is about two tenths (1000 feet) of a mile. If Jim’s range estimates are realistic, and I believe they are, then we can get an idea of what one watt on AM would do.
SaGr reports 1/4 mile with 100 mW. and by my formula this would extend to .79 miles with 1 watt. Thanks for the input.