Total posts : 45366
I looked at the Ramsey chart for part 15 and it is interesting to note that it can cover up to a hundred acres. This was a chart that was meant to guide those that don’t have the Potomac field strength meter. It is interesting to note that if you ask a field agent over the phone on the FCC’s phone number about a part 15 FM station covering a small neighborhood they don’t have any problems with that so long as there is no interference being caused. This was something that surprised the heck out of me. Plus contrary to some belief part 15 did include the venture or the experimentation with FM transmitters. It’s interesting to know that the rules do state the 250 Micro volts per meter but too that the FCC does understand that not everyone has the ability to measure the strength. So when asked about covering a small neighborhood they said something about 100 acres. This is a far cry from a hundred fifty feet. I understand that some have gotten citations for going far less but there may be some other variables involved. I’m not denying that the rules are the rules but it seems to that the FCC is a little relaxed on some of those rules. Thus explaining why unless there is interference involved the agents usually don’t care of a small coverage of a neighborhood or campground. If you look at a map of 100 acres that covers quite a bit of ground. It could easily cover a few city blocks. This validates why the Christmas town in Michigan was never cited because their Transmitter certainly covered close to 1 quarter mile. Again this is another case in point for why I would like it more set towards power levels and a inside and or a certain length or height above ground as a restriction. As I done some more research I found out that this very same thing was talked about on a well-known anti fm website. Radio brandy had asked an agent about covering an entire neighborhood in the legality behind ab. The FCC agent stated that they had no problem with an FM station or should I say part 15 FM station covering a small neighborhood or campground and then talk about 100 acres. So bring some more light on this whole subject. It could explain why the sainsonic was certified at one time. Though it may had went over this field strength level a little (at high power)it did not cover more than 100 acres. I can’t prove it but I have a funny feeling that the rules are going to change especially with the new expansion of the fm band if it does take place. However I still want to lobby for this to be written down in black and white. I am sure some agents with their hair up there but will still site you depending on your area if you are even the slightest bit over 250. I’m still willing to say though in areas that are not Metro and because of the Christmas light Transmitters that do go a bit over the 250 Micro volts per meter that this is going to change. Do the research you’ll see it. Also do the research on the 13 year old boy who had an FM transmitter on like the 20th floor and went out for several miles. The judge ruled in his favor. The NAB might have their rolls out there but the rules are changing its something that they really don’t want you to know but do the research you’ll see it its in black and white. I would still ask for something like New Zealand and have a few channels dedicated to hobby Broadcast maybe when the fm band does expand we can ask for 87.9 an 87.5 and maybe 87.7 to be a part of it.