HD Radio (FM)

From Signal Identification Wiki
Jump to: navigation, search
HD Radio (AM) | HD Radio (FMFrequency Modulation)
HD Radio (FMFrequency Modulation)
HD Radio fm broadcast.jpg
Frequencies 87.7 MHzMegaHertz (MHz) 10^6 Hz87,700,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
87,700 kHzKiloHertz (kHz) 10^3 Hz
,107.9 Mhz107,900,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
107,900 kHzKiloHertz (kHz) 10^3 Hz
87,700 kHzKiloHertz (kHz) 10^3 Hz
87.7 MHzMegaHertz (MHz) 10^6 Hz
107,900 kHzKiloHertz (kHz) 10^3 Hz
107.9 MHzMegaHertz (MHz) 10^6 Hz
Frequency Range 87.7 MHzMegaHertz (MHz) 10^6 Hz87,700,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
87,700 kHzKiloHertz (kHz) 10^3 Hz
- 107.9 MHzMegaHertz (MHz) 10^6 Hz107,900,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
107,900 kHzKiloHertz (kHz) 10^3 Hz
Mode RAW
Modulation OFDMOrthogonal Frequency-Division Multiplexing
ACF
Bandwidth 400 kHzKiloHertz (kHz) 10^3 Hz400,000 HzHertz (Hz), unit of frequency, defined as one cycle per second (1 Hz).
0.4 MHzMegaHertz (MHz) 10^6 Hz
400 kHzKiloHertz (kHz) 10^3 Hz
0.4 MHzMegaHertz (MHz) 10^6 Hz
400 kHzKiloHertz (kHz) 10^3 Hz
0.4 MHzMegaHertz (MHz) 10^6 Hz
Location North America
Short Description HD Radio is a proprietary digital broadcast radio format transmitted in North America, usually as sidebands on analog carriers. This is the FMFrequency Modulation band implementation of HD Radio.
I/Q Raw Recording
Audio Sample
iBiquity HD Radio is a proprietary digital broadcast radio format transmitted in North America, usually as sidebands on analog carriers. This is the FMFrequency Modulation band implementation of HD Radio. This system exists on both FM and AM Bands. This system was developed by iBiquity, which has been acquired by DTS in 2016.


Characteristics[edit]

HD Radio is an OFDMOrthogonal Frequency-Division Multiplexing digital broadcast that usually coincides with an analog signal, but in the AMAmplitude Modulation band you may find signals that are purely HD Radio format, in a similar fashion as DRM. HD radio can also have multiple soundtracks, adding to the number of radio stations you can listen to on a given frequency channel.

Currently, hybrid implementations employ IBOCIn-Band On-Channel (IBOC) is a hybrid method of transmitting digital radio and analog radio broadcast signals simultaneously on the same frequency. techniques by adding extended subcarriers to existing analog transmissions so that both analog and digital formats can be supported. In the future it is hoped that this will allow a gradual segway into fully-digital radio broadcasts.

For FMFrequency Modulation IBOCIn-Band On-Channel (IBOC) is a hybrid method of transmitting digital radio and analog radio broadcast signals simultaneously on the same frequency., each HD Radio sideband is 85 kHzKiloHertz (kHz) 10^3 Hz wide.

Samples[edit]

The sound sample is the first 16 KHzKiloHertz (kHz) 10^3 Hz of the signal right of the analog fm broadcast, received using USBUpper Side Band Modulation (Radio, referring to reception and modulation mode)Universal Serial Bus (Computer, referring to USB Ports and cables) mode.

IQ files[edit]

HD radio IQ file

Frequencies[edit]

US FMFrequency Modulation Broadcast Band (87 Mhz - 108 Mhz)

HD Radio is also used in Canada and Mexico.


Decoding Software[edit]

Since HD Radio utilizes a proprietary codec, owned by iBiquity, there are no known software-based decoders for HD Radio at this time.

Video Examples[edit]

Additional Links[edit]

Additional Images[edit]