MultiScan SDR: A Multi-Band Pseudo-Spectrum Scanner for RTL-SDR, HackRF, Airspy and SDRplay

Thanks to Mike for writing in and sharing his freeware program "MultiScan SDR". It's a fast, wideband scanner for Windows and macOS that sweeps several bands side by side and stops only on real transmissions. It supports the RTL-SDR, HackRF, Airspy, SDRplay RSP series, and Fobos SDR.

The main feature is what Mike calls a "pseudo-spectrum", which doesn't display raw power. Instead, MultiScan sets the noise floor of every frequency to 0 dB, so each channel shows how far it rises above its own local noise. A channel opens only when modulation appears, so unmodulated carriers and short wideband noise spikes are ignored. Other features include up to 10 VFOs, each with its own audio waterfall, band plans for 8 countries, SDR# frequency list import, lockouts with automatic receiver spur detection, and local speech-to-text using Whisper. It also includes ADS-B, AIS, 433 MHz sensor, ACARS, and APRS decoders, plus web control so you can listen from a phone or tablet on your home network.

We note that a basic version of the software is free, but does not appear to be open-source, and is restricted to 2 VFOs. Recording, the decoders, speech-to-text, and web control are unlocked with a support payment (€20 suggested, or any amount you choose). A PRO version that adds a signal classifier and support for multiple SDRs at once is listed as coming soon. Windows users will need to install the WinUSB driver via Zadig first. More information, including a user guide in English, German and French, can be found on the MultiScan SDR website.

Multiscan-SDR Scanner screenshot showing the pseudo-spectrum
MultiScan SDR Scanner screenshot showing the pseudo-spectrum

AI Disclaimer: The author has disclosed that this software has been created with the help of AI.

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1 Comment
Karim
#278433

This is one of many components that groups of clandestine criminals use to electronically harrass and torture people they use this connected to SATCOM UNITs to talk into innocent US citizens brains directly it’s also used with an auditory microwave with components and the help of Starshield satellites and makeshift ground relay stations people target individuals and use phychotronic weapons and some direct energy weapons but mainly helps them speak to victim directly into their hearts something needs to be done about this this equipment isn’t benign,and that the real truth.

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