Total posts : 45366
There are some good points being made here about using wifi and delays, particularly if you are listening to your own audio. My radio station is totally automated, so that isn’t a factor. And there ARE delays with wifi, even with your own intranet (wilderness or otherwise).
But I certainly know that if I were in the U.S., I’d think twice about using Part 15 FM to feed a Part 15 AM station – if you’re more than 100 feet away from the FM transmitter, I would think that a legal FM signal would be sufficiently weak that interference would become a factor. And if you’re less, then you might as well run audio cable to feed the AM transmitter.
Plus, the FCC is certainly more vigilant with Part 15 FM. You might have a perfectly legal AM installation, but have issues because of the FM feed. And there are far fewer certified FM transmitters. You tend to have the inexpensive ones that have far less range (such as the C Crane or Scosche) and the very expensive ones such as Decade, which have better range and sound, but still less than 200 feet to a portable receiver. The others – well, I suspect that there are reasons why a lot of them aren’t certified, including out of band emissions and noise, field strength greater than the maximum allowed, etc. Using a certified transmitter is far more important on FM than AM, as the limits are so much stricter, and that FCC vigilance.
