gr-nrsc5
nrsc5
gr-nrsc5 | nrsc5 | |
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5 | 22 | |
119 | 767 | |
- | 1.6% | |
7.6 | 6.2 | |
7 days ago | 7 days ago | |
Python | C | |
GNU General Public License v3.0 only | GNU General Public License v3.0 or later |
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gr-nrsc5
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Listen to HD radio with a $30 RTL SDR dongle
The code of nrsc5 (and my transmitter project, https://github.com/argilo/gr-nrsc5) would be the best source of information for the undocumented parts. I do have some private notes, but the useful information has already gone into the code.
- How can I do this? Is there a tutorial video?
- HackRF WFM Transmission with Station Data etc
- mayhem equivilent for pc
- HD/DAB pirate radio?
nrsc5
- Nrsc5: Receive NRSC-5 digital radio stations using an RTL-SDR dongle
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Listen to HD radio with a $30 RTL SDR dongle
That decision was made by the original author (Andrew Wesie), but I think it makes sense because nrsc5 only needs a tiny fraction of the functionality that GNU Radio provides. Implementing the functionality directly in nrsc5 avoids the need for a large and complex dependency.
One downside is that we don't get the broad hardware support that GNU Radio provides, but maybe we'll someday take another crack at integrating SoapySDR. (See https://github.com/theori-io/nrsc5/pull/131 for an earlier experiment with that.)
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Why does the spectrum analyzer have a square wave by 102.25 MHz, I see the often in FM broadcasting.
That's HD radio, the sidebands are digital audio. It can be decoded with nrsc5 and an rtl-sdr.
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What is the divergence point of streaming AAC overtaking OTA FM audio quality ?
An article called "Decoding and Listening to HD Radio (NRSC-5) with an RTL-SDR" links to a security researcher's write-up called "Receiving NRSC-5" about how they wrote the software to do it. That links to the actual nrsc5 software on GitHub.
- Square waves in WFM broadcast?
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Looking for a good AM/FM Radio sollution
There is loads of software that will work such as SDR++, GQRX, CubicSDR, and SDRangel just to name a few. For HD radio reception, there is nrsc5. Nrsc5 only works with an rtl-sdr, so you will need one if you want to receive HD radio.
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Can I be tuned in to multiple FM stations at once?
In theory could https://github.com/theori-io/nrsc5 be listening to all hd radio at once?
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Thousands of Mazdas in the Seattle area are stuck on a single FM radio station
HD Radio is closed and proprietary, but there is at least one FOSS receiver out there: https://github.com/theori-io/nrsc5
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What are these bands to the left/right of the two main CBC signals? Not RDS, but appears to be data of some sort? The FM station at 90.7 and 91.5 are both CBC (French & English broadcasts).
NRSC5 is a decoder that I use. If you are on windows there are a couple of extra steps you have to take compile it, but it works well! They have a newer one with a GUI that can also display album art.
What are some alternatives?
gr-dsd - GNU Radio block for Digital Speech Decoder
sdrangel - SDR Rx/Tx software for Airspy, Airspy HF+, BladeRF, HackRF, LimeSDR, PlutoSDR, RTL-SDR, SDRplay RSP1 and FunCube
SoapySDR - Vendor and platform neutral SDR support library.
nrsc5-gui - A graphical interface for nrsc5
gqrx - Software defined radio receiver powered by GNU Radio and Qt.
nrsc5-dui - An enhanced, user-friendly version of nrsc5-gui that is not heavily dependent upon Python processing for audio generation.
gnuradio - GNU Radio – the Free and Open Software Radio Ecosystem
dsd - Digital Speech Decoder
gr-iridium - Iridium burst detector and demodulator.
yellowShoes - nrsc5 (HD FM) radio player
gr-ais - Automatic Information System decoder for shipborne position reporting for the Gnuradio project
docker-rtlsdrairband - Docker container to run rtlsdir-airband + ice cast to stream ATC audio locally or to a remote server