multimon-ng
rtl-sdr
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multimon-ng | rtl-sdr | |
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15 | 8 | |
886 | 656 | |
- | 3.0% | |
4.3 | 5.8 | |
4 months ago | 5 months ago | |
C | C | |
GNU General Public License v3.0 only | GNU General Public License v3.0 only |
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multimon-ng
- Pdw and POCSAG decoding
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message hidden in video from an obscure challenge
I have little experience with decoding radio signals so I don't know if any software decoders are expected to handle the clipping. I tried using multimon-ng and found that its UFSK1200 demodulator can get something out of the audio, but it also keeps repeating Error: stop bit is 0. Bad framing if verbose mode is enabled.
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why am I getting no pages on PDW? I have set EVERYTHING up as per the instructions. I have played with all the settings. nothing
Sorry I gave wrong name, it is multimon https://github.com/EliasOenal/multimon-ng and is capable to decode:
- Funcube dongle with multimon-ng for pocsag decode
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Questions regarding POCSAG receiving
It's likely that the signal is extremely strong. You can probably just pick it up with a short antenna indoors. I used MultiMonNG to decode. It's was pretty boring to be honest.
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Pocsag decoding
Give multimon-ng a whirl. This is CLI based, but can output what it decodes to a simple text file or hex data to do what you need with.
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What do you use your homelab for?
multimon-ng
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A list of things I could do with SDR
POCSAG, FLEX (pagers), Morse, APRS and more with multimon-ng
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What OS has the best software for RTL-SDR? I currently use gqrx but feel its limited.
multimon-ng for decoding various protocols.
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Pager messages
Try this tool; https://github.com/EliasOenal/multimon-ng - It's CLI and you'll ideally want a Linux, but this can decode an awful lot more data modes like such.
rtl-sdr
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SDR over Ethernet - Anyone tried it?
A network protocol called rtl_tcp that has been ported to rsp_tcp by the guys at SDRPlay in order to increase the IQ bandwidth from 8 to 14 bits to get the most from their SDRs. SDRPlay has provided a rsp_tcp server app/image that can be run on various hosts including RPi. Your RSPxx SDR connects to the RPi via USB and the RPi connects to your local network via Ethernet or Wi-Fi. Any network client application that supports rsp_tcp/rtl_tcp (including SDRUno) can connect to the RPi and use the SDR just as if it was connected via USB. This not only allows you to use your SDR from potentially anywhere you have a computer, it also allows you to minimize the distance between the SDR and the antenna(s). In theory you could even run Ethernet cable right up to the antenna.
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rtl-sdr versions that include bias-tee and other improvements
The version from Osmocom does have the -T option. https://github.com/osmocom/rtl-sdr
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1940's Philco Radio & PI/RTL-SDR Setup
Correct, I am using the RTL-SDR software >> https://github.com/osmocom/rtl-sdr
- Funcube dongle with multimon-ng for pocsag decode
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What do you use your homelab for?
rtl_sdr
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What's a good Linux-compatible multipurpose decoder of RF signals?
For remote-location of an RTL dongle using Raspberry Pi or similar, which linux or windows clients can connect to over wifi or ethernet, there is rtl_sdr
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How does sample rate work in an sdr
Hmm. I'd check out the RTL-SDR Sourcecode, in particular rtl-test, and manpage. This tool lets you calculates the PPM error of your dongle.
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Raspberry Pi controlled radio telescope.
Not sure if it’s exactly what you want, but you can control GQRX over TCP. If you want more granular control, you can use the rtl-sdr library to process your desired signal. In my opinion it’s a bit low level for your project so using its Python wrapper, PyRtlSdr so you can get most of the rtl-sdr functionality while using Python’s networking.
What are some alternatives?
dsd - Digital Speech Decoder
rtl-power-fftw - Power spectrum for RTLSDR dongles.
direwolf - Dire Wolf is a software "soundcard" AX.25 packet modem/TNC and APRS encoder/decoder. It can be used stand-alone to observe APRS traffic, as a tracker, digipeater, APRStt gateway, or Internet Gateway (IGate). For more information, look at the bottom 1/4 of this page and in https://github.com/wb2osz/direwolf/blob/dev/doc/README.md
gqrx - Software defined radio receiver powered by GNU Radio and Qt.
rtl_433 - Program to decode radio transmissions from devices on the ISM bands (and other frequencies)
SDRPlusPlus - Cross-Platform SDR Software
sdrangel - SDR Rx/Tx software for Airspy, Airspy HF+, BladeRF, HackRF, LimeSDR, PlutoSDR, RTL-SDR, SDRplay RSP1 and FunCube
librtlsdr - Software to turn the RTL2832U into an SDR
pagermon - Multimon-ng pager message parser and viewer
Virgo - 📡 Virgo: A Versatile Spectrometer for Radio Astronomy