Tagged: IQ recording

New Khanfar Software: Spot Scanner, Phased Based DF, IQ Playback

Recently, software developer M. Khanfar has been releasing a lot of new SDR and RTL-SDR compatible software including a Spectrum Analyzer and FM demodulatordirectional antenna based radio direction finder, and a gr-phosphor based spectrum visualizer.

His pace of development continues, and recently he's developed three new programs.

The first is Khanfar Spot Scanner, a tool for detecting active signals. 

Khanfar Spot Scanner is a powerful and feature-rich spectrum analyzer designed for radio frequency enthusiasts, wireless security researchers, and professional RF engineers. Supporting multiple SDR hardware devices including RTL-SDR, Airspy, and HackRF, this software provides comprehensive spectrum visualization, automated signal detection, and in-depth analysis reporting.

Khanfar Spot Scanner

The second software is called "Khanfar Phase-Based Direction Finding" a tool for phase based radio direction finding.

Khanfar Phase-Based DF is advanced direction finding software that uses phase difference analysis to determine the bearing of radio signal sources. Unlike traditional direction finding systems that rely on directional antennas and signal strength comparison, this software utilizes an array of omnidirectional antennas and sophisticated signal processing algorithms to analyze the phase relationships between received signals.

We want to add to this a note that we're not entirely sure how this software can possibly work as phase based direction finding with RTL-SDRs requires synchronized clocks, and sample and phase alignment to be performed via a correlation with a noise source first which this software does not enable. Without those steps taken results will be totally random. We gave this software a brief test with a KrakenSDR, but as expected, did not see the results we expected. We're keen to hear feedback from other users.

Khanfar Phase-Based Direction Finding Software

The third program is called "Khanfar IQ Live-Rec-Playback" a tool for recording and playing back IQ files, with IQEngine integration.

Khanfar RTL-SDR IQ Live+Rec+Playback is a powerful, feature-rich spectrum analyzer application designed for RTL-SDR devices. This professional-grade software provides real-time RF spectrum visualization with GPU-accelerated rendering, comprehensive IQ data recording capabilities in multiple industry-standard formats, and advanced playback features for signal analysis. With IQEngine and IQ Analyzer integration, you can seamlessly export your recorded signals for comprehensive online analysis, visualization, and collaboration.

Khanfar IQ Live-Rec-Playback

mySdrPlayback: MacOS Software for Browsing Through IQ Recordings from SDR#, SDRUno and More

mySdrPlayback is a program for MacOS that allows you to easily browse through IQ recordings created from multiple SDR programs. Recently the software's author (@ChrisSmolinski) 
Tweeted that he's added support for SDR# and SDRUno IQ recordings
. The program is described below:

Why use this app? It makes it easy to slog through lots of recording files, looking for interesting signals. Load a file, and a waterfall for the entire file is created. You can scroll around, and if you see anything that looks interesting, you can drag select it, and then demodulate it. You can even save the demodulated audio as a WAVE file, that you can listen to later, send to someone else, or play into your digital decoding software, if it is an RTTY, SSTV, etc. transmission.

Support for other SDR recording file formats is possible, you'll need to work with me by providing sample files and details on the format. This program is presently for macOS only. Support for Windows may happen... stay tuned!

mySdrPlayback now supports SDR# and SDRUno IQ Files.
mySdrPlayback now supports SDR# and SDRUno IQ Files.