Total posts : 45366
This is going to be a completely pared down explaination – so all you technodweebs, leave me alone – trying to explain in laymans terms here 😛
With FM, you can legally get about 200-500ft range. You MAY be able to get more with more sensetive recievers. The problem here is that the FCC say you can only have so much power X number of feet from the antenna.
With AM – you can get miles of coverage. This is because the FCC dont say “So much power this far from the antenna” they say instead: You can put one tenth of a watt into your antenna. The antenna has to be just shy of 10 feet long, and the wire from the transmitter to the antenna counts as antenna length – so you had better mount your transmitter to the base of your antenna.”
There are people here who will build you a kit, and others who will build a air coil antenna for you. Pretty much, a plug and play system for less than the pre-made, FCC approved units. However, if you want tech support, an FCC approved unit, and a pretty friendly guy to deal with – I’d recommend going directly to Keith Hamilton and buying one of his units. If you refresh this page a few times, you’ll see his ad banner up top “Rangemaster” – they are around a grand for the super de duper outdoor unit, but for a full on commercial community station that does not have an engineer nearby, it’s a good deal.
My 2 copper.