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Questions tagged [rtl-sdr]

Use this tag for `rtl_power`, `rtl_adsb`, `rtl_fm`, `rtl_eeprom`, `rtl_tcp`, `rtl_sdr`, and `rtl_test`. Software for using DVB-T USB receivers based on RTL2132 as inexpensive SDR receivers. Part of the Osmocom project.

FROM the description at the rtl-sdr project page:

Software for using DVB-T USB receivers based on RTL2132 as inexpensive SDR receivers.

Part of the Osmocom project. Generates the executables:

  • rtl_power
  • rtl_adsb
  • rtl_fm
  • rtl_eeprom
  • rtl_tcp
  • rtl_sdr
  • rtl_test
51 questions
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Parse GMS Packet with GoPacket

I tried this code (below) for sniffing GSM packet with rtl-sdr device: import rtl "github.com/jpoirier/gortlsdr" var buffer = make([]uint8, rtl.DefaultBufLength) for{ rtl.ReadSync(buffer, rtl.DefaultBufLength) …
Towhid Zeinali
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sox silence : newfile : restart not working right/as expected

I have a live radio feed I am trying to capture using rtl_fm and SoX. The source comes in random bursts a few hours long with gaps of days or weeks between events. I would like to capture each of the events into its own audio file while disregarding…
Polymathify
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ModuleNotFoundError on GNU Radio right after installation

I am trying to install GNU Radio manually on my Ubuntu 19.10 by following official instructions( https://wiki.gnuradio.org/index.php/InstallingGR) When I try to run GNU Radio, this error pops up: Is the python path environment variable set…
Galib
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How can I revise Python script for reading ham radio frequencies?

I found an excellent and perhaps-too-detailed posting on how to get broadcast FM Radio from a RTLSDR using Python and the rtlsdr library. https://witestlab.poly.edu/blog/capture-and-decode-fm-radio/ With a few modifications I was able to directly…
NoBugs
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How to plot real time graph using python for the signals received from RTL SDR?

Using the below python(ubuntu) code and rtlsdr, I am able to plot a graph. Can anyone please tell me how to modify this code to plot the graph continuously in real time? from pylab import * from rtlsdr import * sdr = RtlSdr() sdr.sample_rate…
user3661448
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rtl_fm stream with ffmpeg and low bandwith

I currently try to stream audio from rtl_fm via ffmpeg to node-media-server. This is working fine. rtl_fm -f 103.0M -M fm -s 44.1k -A std -l 1 -g 40 | ffmpeg -f s16le -ac 1 -i pipe:0 -f flv rtmp://192.168.178.42/live/lorem But: The I want to…
Felix Bäder
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have any one used plutoSDR via python

I'm trying to detect UAVs using RF signal.. so I just bought ADALM-PLUTO SDR. I think I need to use adi library to use this on python, but the thing that makes me confused is sdr.rx() method. this method returns the complex value like -3+24j, but I…
boxer388
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How to shift IQ stream using numpy?

I have a python code that reads an IQ stream from a RTL-SDR dongle and process it to a ndarray, the IQ from the ndarray is then demodulated to extract an USB signal and written to a file, the code is something like: def MainLoop(): ... # A loop…
iu2frl
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Read binary data through MATLAB

I have record the GPSL1 signal in the .bin format using USRP 2900 Parameters are: Frequency = 1575.42M I/Q rate = 4M Gain = 25dB............... Now i want to extract tracking data in .mat form and in .dat form can you help me fid =…
Rizwan Ashfaq
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How to plot real time graph using python for the signals received from RTL SDR without closing the plot?

I want to plot graph of signal from RTL-SDR dongle but couldn't plot continuously at the same window without closing Here's the code that i tried, from pylab import * from rtlsdr import * from time import sleep sdr = RtlSdr() sdr.sample_rate…
ismail
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QtAndroid: Grant Usb Permission in Android with Qt6

in android programming you need to get usb permission before working with connected device to client device. i am trying to connect a hack-rf to android device and use it... but first of all i need to get usb permission and detect that…
Nemo
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Meteor spectrogram from wave files

I am using SpectrumLab for logging meteors with an SDR. SpectrumLab records waterfall screenshots and a wav file of an event. I am trying to reproduce the waterfall screenshot of SpectrumLab from the wave file but the pattern looks different: import…
honeymoon
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pyrtlsdr installation Windows 10

I am trying to install pyrtlsdr, I first installed SDRUno and checked whether my SDRPlay is connected and working fine. That's ok. Then I try to install pyrtlsdr with pip on Windows 10 with Python 3.11.0 [MSC v.1929 64 bit (AMD64)] on win32. This…
honeymoon
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Modulating encrypted text file

I am trying to modulate encrypted txt file using GNU Radio. Encryption part is already done and working. I am trying to figure out how to trasmitt it using psk. Im still a beginner at gnu radio. Is the following flowgraph logical? Im trying to use…
Emil Turk
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Problem with processing input signal and compute frequency offset in Python pyadi-iio

I have a code in MATLAB function [freqOffset] = find_frequency_offset(rxData, sample_rate) magnitudeFFT = (abs(fft(rxData))).^2; % Magnitude FFT FFTSize = length(magnitudeFFT); FFTSig = fftshift(magnitudeFFT); [~, maxIdx] =…
Count Zero
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