Are small FM transmitters legal?
Fortunately there is a legal way that they can cover the area of an average size parking lot. They can use one of our FCC certified Part 15 FM transmitters. Part 15 certified FM transmitters can be used legally by anybody, anywhere in the U.S. without the need for a license.
Is it illegal to broadcast on FM?
Regardless of popular misconceptions, it is not legal to broadcast on FM at low power, or at any power, without a license from the FCC. The section of the Federal Code of Regulations that regulates legal, unlicensed FM transmissions is Title 47, Part 15.
Is it illegal to use a radio transmitter?
In the US, they are illegal if their output power exceeds a Maximum Effective Radiated Power (ERP) of 0.01 microwatts or 250 µV/m measured at 3 metres (9.8 ft). Legal would be a range of about 100 feet. There are lots of legal FM transmitters used to wirelessly connect a MP3 player to an existing FM car radio.
How far will a 500 watt FM transmitter reach?
| Watts in ERP | Kilometers Rural area |
|---|---|
| 100 | 24 |
| 300 | 42 |
| 500 | 54 |
| 1000 | 76 |
How far can a 10w radio transmit?
Thus the typical ranges with around 400 MHz frequency range with 1 W transmitter power are up to ~30 kilometers and up to ~80 kilometers with 10 W transmitter power. See sample picture of a RF link functional factors at the end of this document. The links can be extended by using repeater radio stations.
Do you need a license to broadcast on shortwave?
As a broadcaster, you would need to be licensed by the Federal Communications Commision. If all you are interested in is to “have your voice heard” on shortwave, there are established shortwave stations that rent you their time so you can broadcast your own time.
Is broadcasting your own radio illegal?
The Radio Act of 1912 made it illegal to operate amateur radio stations over frequencies without a license. “[U]nlicensed operation of radio broadcast stations is prohibited, even at low powers such as 1 watt or less,” The FCC writes on its website.
How far can a 1000 watt radio transmit?
You could have two different radio stations using a 1000 Watt FM transmitter: one of them with a 30 meter tower in a flat terrain will cover 20 kilometers, while the other with the antenna on a 500 meter hill will cover 80 kilometer.
What is the frequency range of the FM broadcast band?
FYI, the standard FM broadcast band is divided into 100 channels at 200 KHz increments between 88 and 108 MHz. The lowest channel is designated as number 201 and it’s center frequency is 88.1 MHz.
What is the minimum power for a standard FM broadcast station?
The minimum power for a standard FM broadcast station which a construction permit applicant may request is 100 watts (0.100 kilowatts).
What is the lowest channel number on the FM radio spectrum?
The lowest channel is designated as number 201 and it’s center frequency is 88.1 MHz. The highest channel is number 300 at 107.9 MHz. Channels 200-220 are reserved for use by non-commercial stations including educational, public (NPR), and religious broadcasters.
What is the frequency of a 35 kW FM transmitter?
A commercial 35 kW FM radio transmitter built in the late 1980s. It belongs to FM radio station KWNR in Henderson, Nevada and broadcasts at a frequency of 95.5 MHz. FM broadcasting is a method of radio broadcasting using frequency modulation ( FM ).