RTLSDR-Airband
squelch-to-burst
| RTLSDR-Airband | squelch-to-burst | |
|---|---|---|
| 21 | 3 | |
| 708 | 0 | |
| - | - | |
| 7.0 | 0.0 | |
| about 1 month ago | about 4 years ago | |
| C++ | ||
| GNU General Public License v3.0 only | GNU General Public License v3.0 only |
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RTLSDR-Airband
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Listen to HD radio with a $30 RTL SDR dongle
You're all correct, except there are not that many $30 SDRs out there. Also, most SDRs have clearly superior capabilities to the RTL-SDR, though those capabilities often are not required.
BTW, for simple AM/FM demodulation I cannot recommend enough the handy https://github.com/charlie-foxtrot/RTLSDR-Airband. For example most of LiveATC.net feeds run on it.
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Automatic recording app for Linux?
rtlsdr_airband, but again requires knowing the frequencies of interest ahead of time.
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I'm back into it 2 years later
You may want to give RTLSDR-Airband a look. Its designed for analog AM/NFM voice traffic and can be configured to operate on any frequency your rtlsdr dongle can handle. It can also be configured to output to an mp3 file, in addition to other things like IceCast.
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Raspberry Pi RTL_Airband
There’s an example service config file in the repo: https://github.com/charlie-foxtrot/RTLSDR-Airband/blob/main/init.d/rtl_airband.service
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Streaming audio from local UDP source
I have been streaming the output from RTLSDR-Airband (https://github.com/charlie-foxtrot/RTLSDR-Airband) with icecast2 for several (5?) Years now, and I have some time and inclination to look at reducing latency (currently best is 10s, but often much more.)
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Airband receiver
https://github.com/szpajder/RTLSDR-Airband Might be what you are looking for, although I don't know the performance requirements. It has a scan mode detailed here: https://github.com/szpajder/RTLSDR-Airband/wiki/Configuring-channels-for-scan-mode
- What software would I need to use to listen to airband? (mac or linux)
- Help\ideas for base station, some guidance needed
- timestampSDR
- Looking for (working) RF-Monitor
squelch-to-burst
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Detecting overflow?
If you can see this by inspecting the tags, you can write an embedded python block to solve this. That way you should be able to adjust some global variables. Long ago, in the GRC3.7 time, I made a simple flowgraph to modify tags. This was done so the file meta sink gets the right tags after a squelch hits. Maybe it can be useful for you: https://github.com/SDRWaveRunner/squelch-to-burst
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how to do signal power detection then save the original IQ signal in GNUradio?
I made a small project for this back in the gnuradio 3.7 time with exactly this goal: https://github.com/SDRWaveRunner/squelch-to-burst
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Record IQ data only if signal is there (to look at burst signal)
This is very easy to do in gnuradio by using a squelch in front of your file sink. I wrote an addition for this in my project "squelch-to-burst", with gnuradio example: https://github.com/SDRWaveRunner/squelch-to-burst
What are some alternatives?
openwebrx - Open source, multi-user SDR receiver software with a web interface
rtl_433 - Program to decode radio transmissions from devices on the ISM bands (and other frequencies)
sdrangel - SDR Rx/Tx software for Airspy, Airspy HF+, BladeRF, HackRF, LimeSDR, PlutoSDR, RTL-SDR, SDRplay RSP1 and FunCube
dumphfdl - Multichannel HFDL decoder
AIS-catcher - AIS receiver for RTL SDR dongles, Airspy R2, Airspy Mini, Airspy HF+, HackRF, SDRplay and SoapySDR
wmbusmeters - Read the wired or wireless mbus protocol to acquire utility meter readings.
rtl-wmbus - Software defined receiver for wireless M-Bus with RTL-SDR
dumpvdl2 - VDL Mode 2 message decoder and protocol analyzer
gnss-sdr - GNSS-SDR, an open-source software-defined GNSS receiver
GAAS - GAAS is an open-source program designed for fully autonomous VTOL(a.k.a flying cars) and drones. GAAS stands for Generalized Autonomy Aviation System.