rtl-power-fftw
nrsc5
rtl-power-fftw | nrsc5 | |
---|---|---|
16 | 22 | |
151 | 766 | |
1.3% | 1.4% | |
0.0 | 6.2 | |
9 months ago | 5 days ago | |
C++ | C | |
GNU General Public License v3.0 only | GNU General Public License v3.0 or later |
Stars - the number of stars that a project has on GitHub. Growth - month over month growth in stars.
Activity is a relative number indicating how actively a project is being developed. Recent commits have higher weight than older ones.
For example, an activity of 9.0 indicates that a project is amongst the top 10% of the most actively developed projects that we are tracking.
rtl-power-fftw
- Export near real-time trace
-
Using SDR to make .CSV files for Wireless Workbench
https://github.com/AD-Vega/rtl-power-fftw can help. This can be easily piped for various outputs and works with GNUPlot off the bat. Use this on an Android based SDR for foxhunting and Signal seeking.
-
how can I find other signals to listen to?
I like to use rrl_power_fftw
-
Frequency hopping driveway sensor?
You could use rtl_power_fftw to better record the wider band over a time period. This is similar to rtl_power from librtlsdr, but is more efficient and can dwell for as little as 100ms on any 2.4MHz window (24MHz done in 1 second, f.e.). You can then plot this data through GNUPlot to get visual representations.
- Any fun ideas for introducing SDR to my 81 year old dad?
-
Comparing receive capabilities of antenna
These are made using rtl-power-fftw and GNUPlot
-
Laptops with lowest RFI?
I have a rooted Android with an RTL-SDR attached, which I'd take with me if buying a new laptop. I'd sit near the laptop's on display with a stubby duck in the SDR and use rtl-power-fftw to rapid scan 27-1724MHz (fastest is 100ms dwell at 2.4MSps). Takes a minute or two and can be fed into GNUPlot to give you a pretty graph of signals seen. Do it at a low gain and any spikes you see are likely from those sources.
-
What do you use your homelab for?
rtl-power-fftw
-
Passive signal collection?
Look into rtl_power_fftw. It can be run for hours on any host (including a Raspberry Pi) and the spectrum results examined later.
-
Rtl_power scanner logic
rtl_power_fftw is likely more well suited. It's multithreaded, so can sample IQ and process the data as it samples. It's also faster and uses libfftw for processing (faster and more accurate). Outputs more friendly, too. I use this in part with a signal heatmap project; https://www.reddit.com/r/RTLSDR/comments/ifer8j/progress_on_the_android_sdr_linuxdeploy_rtl_power/
nrsc5
- Nrsc5: Receive NRSC-5 digital radio stations using an RTL-SDR dongle
-
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.)
-
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.
-
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?
-
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.
-
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?
-
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
-
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?
rtl-sdr - library for turning a RTL2832 based DVB dongle into a Software DefinedReceiver; mirror from https://gitea.osmocom.org/sdr/rtl-sdr
sdrangel - SDR Rx/Tx software for Airspy, Airspy HF+, BladeRF, HackRF, LimeSDR, PlutoSDR, RTL-SDR, SDRplay RSP1 and FunCube
rtl_433 - Program to decode radio transmissions from devices on the ISM bands (and other frequencies)
nrsc5-gui - A graphical interface for nrsc5
noaa-apt - NOAA APT weather satellite image decoder, for Linux, Windows, RPi 2+, OSX and Android+Termux
nrsc5-dui - An enhanced, user-friendly version of nrsc5-gui that is not heavily dependent upon Python processing for audio generation.
SDRPlusPlus - Cross-Platform SDR Software
dsd - Digital Speech Decoder
multimon-ng
yellowShoes - nrsc5 (HD FM) radio player
docker-rtlsdrairband - Docker container to run rtlsdir-airband + ice cast to stream ATC audio locally or to a remote server