High Dave, I will take this to heart. After all, the bible does say, "obey the laws of the land." So before I get my hands on the equipment, I will try and get the license to use it. Oh, by the way, thinks for the info! This will make my research a hole lot more easier. John Price. ----- Original Message ----- From: "Dave McLean" <[EMAIL PROTECTED]> To: "PC Audio Discussion List" <pc-audio@pc-audio.org> Sent: Wednesday, September 12, 2007 4:30 PM Subject: Re: Accessible FM transmitters
> Just want to clear up what might be a slight misconception at least with > regard to hobby broadcasting in the U.S. > Hobby broadcasting is governed under FCC part 15 of the FCC rules and > regs. > These rules are summarized below. Thanks to the Ramsey Electronics > Bulletin > Board from which I copied this info. > > Hello All, > > After you read my post, please do not respond with comments about "go for > it", "relax and have fun", "you won't hurt anybody and won't get caught", > or > many of the other criticisms which have resulted when someone, such as I, > explain the reality of the FCC rules regarding part 15 FM. My intent is > not > to > tell anyone what to do or what not to do; it is to provide information so > those who are interested can have a knowledge base from which they can > decide > on their own how to proceed. If I state technical or other inaccuracies, I > will welcome and acknowledge corrections. > > The FCC rules for unlicensed operation in the FM band limit, among other > things, the field strength to 250 microvolts per meter measured at 3 > meters. > This > is not a limit on power, transmission lines, grounds, nor antennas. This > limit actually includes the effects of all of these variables and focuses > only > on the outcome. To put this field strength in perspective, this field > strength can be produced by about 11 nanowatts into a dipole antenna. One > nanowatt > is one one millionth of a milliwatt, so the information typically > mentioned > about 25 milliwatt transmitters is not only not presenting any meaningful > information > about compliance with the FCC rules, it is misleading people into > believing > that this power is the norm for legal hobby FM. A 25 milliwatt output > delivered > to a typical antenna will exceed the field strength limit by about 1400 > times. Many have been cited and fined where the citations mention field > strengths > in the range of that which can easily be produced by 25 milliwatt > transmitter output power. > > If you don't think this is something to consider, check these links (look > for NOUO and NAL): > > http://www.fcc.gov/eb/FieldNotices/ > > http://www.fcc.gov/eb/Orders/Welcome.html > > You will see that there are many citations and fines for unlicensed > operation on the FM band. You might think that the kit your built is OK > but > consider > the information on the following links, especially with regard to the > calculated "milliwatt" transmitter powers which resulted in FCC actions: > > http://part15.us/node/1375#comment-4249 > > http://www.part15.us/node/716#comment-1578 > > You might assume that because you bought a FM transmitter kit from a good > source (such as Ramsey) that it is going to be legal to put it on the air. > This > is not true unless you can, by some means, assure that you comply with the > rules. All of the FM transmitter kits of which I am aware are NOT FCC > certified > nor type accepted. It is legal to offer these for sale as kits, but the > responsibility for legal use falls on the user. There is no assurance to > be > gained > that you will not have a problem just because you bought and assembled a > kit > from a reputable manufacturer. It is up to you! > > I have a Ramsey FM transmitter and I have limited the range of this unit > to > less than 200 feet. Why? Because the FCC itself has published an > information > sheet which states that this is the approximate range to expect from a > legal > station. I have no other means to judge my compliance with the > regulations, > but this is probably close enough. > > You can achieve, with the kits available and simple antennas, much greater > range but consider that you cannot do so legally in the US. A cavelier > attitude > on the part of those who operate FM transmitters built from kits and who > intentionally or unintentionally violate the rules may result in, by a > change > in the rules, the complete elimination of FM transmitter kits from the > market > > It is your choice regarding what you do. It is my hope, after you have > read > this, that you will do so knowing what is involved. > > Neil > > > ----- Original Message ----- > From: "Bob Seed" <[EMAIL PROTECTED]> > To: "PC Audio Discussion List" <pc-audio@pc-audio.org> > Sent: Wednesday, September 12, 2007 4:02 PM > Subject: Re: Accessible FM transmitters > > >> Oops, I wouldn't recommend going that route! There are very strict rules >> governing FM broadcasting in the United States and Canada. Anything over >> 1 >> watt requires a broadcast licence, and you have to ensure that the >> frequency >> that you are transmitting on is not being occupied by another >> broadcaster. >> The FM transmitter that is being recommended on this site is more than >> adequate to cover the average home. The seller of the unit is not >> responsible for any modification done to the unit in order to broadcast >> beyond the recommended coverage area. . >> \ >> From: "DJ DOCTOR P" <[EMAIL PROTECTED]> >> To: "PC Audio Discussion List" <pc-audio@pc-audio.org> >> Sent: Wednesday, September 12, 2007 12:42 AM >> Subject: Re: Accessible FM transmitters >> >> >>> Hello Russell,this is John. >>> I have been doing some research on transmitters and amplifiers. >>> You can take one of these transmitters that was designed for home use, >>> and >>> hook it up to a 1000 watt amplifier. >>> This will allow you to broadcast all over town, that is, if you wanted >>> to. >>> Based on this, I will try to set up my own gospel radio station, and run >>> it >>> out of my house. >>> But however, for starters, the $340 fm radio transmitter with a 1000 >>> watt >>> amplifier witch will cost around $500, will do the trick for me. >>> The Bose and or any radio will pick up a signal this strong. >>> The thing that you may have to do, is get an FCC license to broadcast. >>> This is something that I'm still trying to figure out how to go about >>> obtaining. >>> Just as soon as I find out how, I will post it here in pc audio. >>> John Price. >>> >>> ----- Original Message ----- >>> From: "russell Bourgoin" <[EMAIL PROTECTED]> >>> To: "PC Audio Discussion List" <pc-audio@pc-audio.org> >>> Sent: Tuesday, September 11, 2007 4:31 PM >>> Subject: Re: Accessible FM transmitters >>> >>> >>>> Hi Jonathan, >>>> >>>> I'm very interested in purchasing a unit as you describe in >>>> your mail. When you say its priced on the high side, how high is >>>> high? And, did they charge more for adding the features that you >>>> requested? Is there a contact that you have to whom I could speak to >>>> obtain a unit tricked out as is yours? >>>> >>>> I do some dejaying at fish and gun club functions. Often I >>>> bring a few large bose accoustic waves and place them outside facing >>>> the say, family day activities. The cooking crew is off at the >>>> barbecue pit and are out of range of the bose radios that I bring, so >>>> they park their trucks around the pit and tune radios >>>> in. Unfortunately, they are out of reach of the c crane transmitter, >>>> altered as it is. Hence my interest in the unit you describe. Any >>>> info is surely appreciated. >>>> >>>> Rusty >>>> > At 10:19 AM 9/11/2007, Bob Seed spake thusly:- >>>>> couple of months ago, there was a great thread on this list about FM >>>>>transmitters. A user recommended the transmitter found at >>>>>http://www.wavemach.com. >>>>> >>>>>I purchased one of these and am thrilled. The range is huge, the >>>>>construction solid, no nasty power hum, very good stereo separation, in >>>>>short, no complaints whatsoever. I got him to add a level control that >>>>>allows me to set the line in for the two RCA sockets, and he also added >>>>>small buttons for setting the frequency. It has a standard antenna >>>>>socket >>>>>at >>>>>the back and comes with a very solid little antenna, not just a wire. >>>>> >>>>>So if you're looking for an FM transmitter, this one is definitely >>>>>worth >>>>>a >>>>>look, but it is on the high end of the price range. You definitely get >>>>>what >>>>>you pay for though. >>>>> >>>>>Jonathan >>>>> >>>>> >>>>>----- Original Message ----- >>>>>From: "Jason Boston" <[EMAIL PROTECTED]> >>>>>To: "'PC Audio Discussion List'" <pc-audio@pc-audio.org> >>>>>Sent: Monday, September 10, 2007 1:26 AM >>>>>Subject: Accessible FM transmitters >>>>> >>>>> >>>>> > Hi all, >>>>> > I'm looking for a blind friendly FM transmitter that will work well >>>>> > with >>>>> > PC, stereo, mp3 player, etc. It also needs to be able to broadcast >>>>> > 150+ >>>>> > feet in a household environment. This is for use in the USA, so the >>>>> > broadcasting frequencies need to end in odd numbers. >>>>> > >>>>> > I also would like the transmitter to have multiple power supply >>>>> > options >>>>> > like car adapter, AC adapter, batteries, even USB. >>>>> > >>>>> > I've seen one called MobileBlackBox v5000 fm transmitter, but it >>>>> > seems >>>>> > to be out of stock and I don't know how easy it is to use. Also, I >>>>> > don't >>>>> > know if it lives up to the range it claims. I know the one you can >>>>> > buy >>>>> > at Radio Shack for about $30 isn't worth 2 cents. >>>>> > >>>>> > Well, thanks in advance for your input and advise. >>>>> > Jason >>>>> > >>>>> > No virus found in this outgoing message. >>>>> > Checked by AVG Free Edition. >>>>> > Version: 7.5.485 / Virus Database: 269.13.12/997 - Release Date: >>>>> > 9/9/2007 10:17 AM >>>>> > >>>>> > >>>>> > >>>>> > >>>>> > Audio List Help, Guidelines, Archives and more... >>>>> > http://www.pc-audio.org >>>>> > >>>>> > To unsubscribe from this list, send a blank email to: >>>>> > [EMAIL PROTECTED] >>>>> > >>>>> > >>>>> > -- >>>>> > Internal Virus Database is out-of-date. >>>>> > Checked by AVG Free Edition. >>>>> > Version: 7.5.484 / Virus Database: 269.13.2/983 - Release Date: >>>>> > 01/09/2007 >>>>> > 4:20 PM >>>>> > >>>>> > >>>>> >>>>> >>>>> >>>>>Audio List Help, Guidelines, Archives and more... >>>>>http://www.pc-audio.org >>>>> >>>>>To unsubscribe from this list, send a blank email to: >>>>>[EMAIL PROTECTED] >>>>> >>>>>__________ NOD32 2522 (20070911) Information __________ >>>>> >>>>>This message was checked by NOD32 antivirus system. >>>>>http://www.eset.com >>>>> >>>>> >>>>> >>>>>__________ NOD32 2522 (20070911) Information __________ >>>>> >>>>>This message was checked by NOD32 antivirus system. >>>>>http://www.eset.com >>>> >>>> "For everything that lives is holy, life delights in life." >>>> (William >>>> Blake) >>>> >>>> >>>> >>>> >>>> Check out my site at: >>>> http://www.thesoundzone.com >>>> >>>> >>>> >>>> Audio List Help, Guidelines, Archives and more... >>>> http://www.pc-audio.org >>>> >>>> To unsubscribe from this list, send a blank email to: >>>> [EMAIL PROTECTED] >>>> >>>> >>>> -- >>>> No virus found in this incoming message. >>>> Checked by AVG Free Edition. >>>> Version: 7.5.485 / Virus Database: 269.13.14/999 - Release Date: >>>> 9/10/2007 >>>> 5:43 PM >>>> >>>> >>> >>> >>> >>> Audio List Help, Guidelines, Archives and more... >>> http://www.pc-audio.org >>> >>> To unsubscribe from this list, send a blank email to: >>> [EMAIL PROTECTED] >>> >>> >>> -- >>> No virus found in this incoming message. >>> Checked by AVG Free Edition. >>> Version: 7.5.485 / Virus Database: 269.13.14/999 - Release Date: >>> 10/09/2007 5:43 PM >>> >> >> >> >> Audio List Help, Guidelines, Archives and more... >> http://www.pc-audio.org >> >> To unsubscribe from this list, send a blank email to: >> [EMAIL PROTECTED] >> > > > > > Audio List Help, Guidelines, Archives and more... > http://www.pc-audio.org > > To unsubscribe from this list, send a blank email to: > [EMAIL PROTECTED] > > > -- > No virus found in this incoming message. > Checked by AVG Free Edition. > Version: 7.5.485 / Virus Database: 269.13.15/1003 - Release Date: > 9/12/2007 10:56 AM > > Audio List Help, Guidelines, Archives and more... http://www.pc-audio.org To unsubscribe from this list, send a blank email to: [EMAIL PROTECTED]
