Talking house am radio transmitter th5 this is the classic talking house am radio transmitter system, the most popular licensefree radio transmitter system of its kind ever manufactured. Considering the ease in plug n play this is a great transmitter for those who arent technically inclined. Small am transmitter if you have seen the antique radio section of my web site, then you know that i like restoring, and listening to, old radios from our grandfathers days. Transmitter specs for the outdoor unit am rangemaster. Part 15 fcc rules project gutenberg selfpublishing. As your source for radio electronics and broadcasting equipment, we carry the top brands of am radio transmitters such as procaster and rangemaster. The lpam handbook by kyle drake low power radio repository. Information stations are complete systems, packaged with various voice systems, cabinets, connectivities, antenna mounts, hardware and related signage.
Frequently encountered types of part 15 transmitters include. This sidebyside operational comparison of five popular part 15 am transmitters was performed utilizing a bythebook, groundmounted part. The objective was to keep it simple, cheap and give part 15 regs some recognition. Here you will find a warm community to answer your questions and help you get going. And those rules dictate a lot of restrictions and cover your wireless transmitters that we use every day, remote controls for you car, your headset, bluetooth sets. Whether you are a broadcasting veteran or just want to know how to start a radio station welcome. I think you will agree that having your own am transmitter is pretty important, so it is the latter part of the fourth noble truth that this article is all about. Fitness centers love it broadcast your tv audio to customers on their fm radio for a fraction of the cost when compared to your other. Radiosophy hd100 digital hd radio receiver discontinued. Though we havent seen every low power am transmitter out on the market, what we have seen comes nowhere close to that kind of coverage radius. That is because these transmitters as well as any other am transmitter that abides by part 15 fcc rules can only have 100 milliwatts input to the final amplifier. With all of the part 15 devices that are out in the world, what are the threats and perceived threats, and how can amateur radio tell one from the other. Carrier current transmitter are designed to emit much greater power than allowed under part 15 rules if connected to an antenna. Please forgive my chinese accent lol thanks for watching.
Add an 84 rectifier and you have an all tube transmitter. Home for rangemaster transmitters, maker of the lpam am rangemasterlow power part 15 am transmitter. Code of federal regulations, title 47, part 15 47 cfr 15 is an oftquoted part of federal communications commission fcc rules and regulations regarding unlicensed transmissions. Low power fm lpfm broadcast radio stations federal. This sidebyside operational comparison of five popular part 15 am transmitters was performed utilizing a bythe book, groundmounted part 15. Part 15 requires that they use good engineering and that they not cause harmful interference to radio services. Broadcast using our am transmitter and get long range and high fidelity sound. This is the classic talking house am radio transmitter system, the most popular licensefree radio transmitter system of its kind ever manufactured. With the fccapproved procaster low power part 15 am transmitter, you can legally broadcast any audio content over a local area without the cost or hassle of a broadcast license. Field intensity measurements were recorded using a potomac fim41 and off. Today instead, the better sound quality offered by fm has driven am stations almost completely out of the market in many places of.
I am proud to announce the release of the low power am broadcasters handbook, the first ever comprehensive guide to lpam broadcasting. Buy radiosophy hd100 digital hd radio receiver discontinued by manufacturer. Part15 license free, legal, lowpower radio broadcasting. Lets you have the technology to get your house listing or business talking. But ive been doing a lot of work in the studio, adding a part 15 fm transmitter that barely covers my house, but requires changes to the airchain. Contact us today for additional information about our transmitters. The video shows what a basic fm radio station contains and how to connect them quickly. We do not recommend the purchase of any equipment until you receive an lpfm construction permit from the fcc. Infospot is the first professional, licensefree radio station available for government, nonprofit and individual applications. It is the only such system certified under fcc part 15. Low power broadcasting by james r cunningham low power.
A note about part 15 it does not require that you use a transmitter that has been typeaccepted, so it is legal to use a homemade transmitter or a kit. This is the practical equiv of less than 1mw being. The amt3000 is the finest lowpower am broadcast radio transmitter available in its price range. Distinguish pirates from part 15 operators radioworld. With all of the part 15 devices that are out in the world, what are the threats and perceived threats, and how can amateur radio tell. Am transmitter challenge of part 15 low power am transmitters page 5. It has features found only in transmitters costing hundreds of dollars more. Radios free delivery possible on eligible purchases. Am transmitter and broadcasting your favorite stuff or rebroadcasting your favorite fm station to your old radios. Enter the am transmitter challenge, a herculean effort undertaken by the talented and dedicated bill defelice and a cadre of capable assistants who put in the time and, from the sounds of the report, no small amount of work in designing, coordinating and delivering the final word on legal low power part 15 compliant am. Introducing the sstran amt5000 low power am broadcast transmitter that is designed to be equal or exceed the range and audio quality of all other fcc part 15 am transmitters currently being sold at any price. Introducing the sstran amt5000 low power am broadcast transmitter that is designed to be equal or exceed the range and audio quality of all other fcc part 15 am transmitters. Licensefree solutions information station specialists.
Carrier current systems utilize power lines as radiators and must be. Be prepared and able to communicate in case of emergency with the largest selection at. Insert the control lock key in the control lock hole located on the back of the transmitter. Kdb 377704 dect catiq system indicates how compliance with the upcs rule section 15. For broadcasting from an antenna, pick a frequency above 1500 khz. Be cautious of offers for equipment or services that promise to get you an lpfm station or to sell you a part 15 unlicensed device or transmitter as a means to starting a licensed lpfm service. Code of federal regulations, title 47, part 15 47 cfr 15 is an oftquoted part of federal. For license free use of fcc part 15 transmitters, the output must be less than 500mvmeter at 3 meters nonspread spectrum designs. Fcc authorization is not required in order to test a transmitter for compliance with the part 15 technical standards. On fm frequencies, these devices are limited to an effective service range of approximately 200 feet 61 meters.
Earlier on another thread there was mention of so many different transmitter manufacturers that i decided to start a new thread just for transmitters so we can get this thing going. Unlicensed operation on the am and fm radio broadcast bands is permitted for some extremely low powered devices covered under part 15 of the fccs rules. For any given combination of transmitter power and antenna size. Part 15 threefrequency am radio transmitter works on three frequencies, 800, and 1200 khz, input power 100mw, rca input accepts mono casette player, mp3 player, pc sound card or cd, receive content on am radio, operates on 9 volt dc battery or power supply. Lpam hamilton am rangemaster part 15 am transmitter.
Power dividers rf adaptors rf amplifiers rf connectors specialty fm transmitters stl transmitters surge suppressors towers 630 7369822 progressive concepts. Low power radio general information federal communications. Ive had my talking house am radio transmitter for nearly a year. Part 15 transmitters power dividers rf adaptors rf amplifiers rf connectors specialty fm transmitters stl transmitters surge suppressors towers 630 7369822. How to build fm radio station with fm transmitter in 15. In the us, these fall under part 15 of the federal communications commission fcc regulations. Leave pirate radio and start a legal radio station and enjoy broadcasting. Most new digital receivers will also tune the unused 1710 channel, but that is outside the legal frequency range for part 15 unlicensed broadcasting 510 through 1705 khz. I am not sure you can get them on amazon, but a fc12mfatt12012 and a. It is a part of title 47 of the code of federal regulations cfr, and regulates everything from spurious emissions to unlicensed lowpower broadcasting. Radio part 15 certified am transmitter manufactured by radio systems, inc.
The information can be added to the carrier in several different ways, in different types of transmitters. Applications include local community radio, retirement communities, churches, marinas, campgrounds, businesses, emergency broadcasts and more. Paul, a 75 and a 41 would probably drop right in the circuit in place of the 6aw8. The power level is 10 kw, and the antenna system is a 3 tower directional array with a tower height of 46. I hope to be back on the air soon with two synchronized part 15 am transmitters for the neighborhood coverage. Amfm transmitter schematics from simple to hard free.
With so many uses for a part 15 fm transmitter, there are too many to list here. The book is full of the data, schematics, and guides needed to put together a. Dust off those am radios, theres something good on. Build your own lowpower transmitters addresses applications for hobbyist broadcasting of am, ssb, tv, fm stereo and nbfm vhfuhf signals with equipment the reader can build himself for thousands of dollars less than similar equipment sold on the retail market. It is the most affordable solution for local area broadcasting, offering the widest latitude in frequency flexibility, audio quality, broadcast content and programming convenience. I do a form of the later and find it is now within the fcc part 15 rules which. In an amplitude modulation am transmitter, the information is added to the radio signal by varying its amplitude. Unlicensed operation on the am and fm radio broadcast bands is permitted for. Circuit information thread famous corsair transmitter schematic for shortwave or high mw band 10 watt am mw caster uses fet. I find the audio very nice and frequency stability is rock solid.