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Demod Analyzer: Analyze Digital Modulation (BPSK, QPSK, 16-QAM) in IQ Files
Thank you to Attila Zsellér, who has submitted his latest Python program called "Demod Analyzer". This program is designed for analyzing BPSK/QPSK/QAM16 signals in recorded IQ samples. Atilla writes:...
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LakeShark: P25 Phase 1, FM, POCSAG, ADS-B and Sub-GHz with an RTL-SDR on the...
Thank you to Samuel Reynolds (aka SAMS0N1TE on GitHub), for writing in and sharing with us his project called 'LakeShark'. LakeShark is firmware for the LilyGO T-Display P4 (an ESP32-P4-based...
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SDR–: A Software-Defined Radio Application with Visual Signal Path
Thank you to Julian for writing in and sharing with us his interesting project called SDR-- (SDR minus minus). SDR-- is an open-source app that lets you wire devices, decoders, and displays together on...
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HamRadioWeb: A Browser-Based Remote FT8/FT4 Receiver with Live Heatmaps,...
Thank you to Patricio for writing in and sharing with us his release of HamRadioWeb, a browser-based remote receiver with a focus on FT8 and FT4 reception. If you're not aware, FT8 and FT4 are amateur...
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IC-SDR: A New Multimode SDR Software for Windows Written in Go
Thank you to Luis Lopez Martinez for writing in and sharing the release of his open-source software, IC-SDR, a new multi-mode SDR application for Windows written in Gowith a focus on performance and...
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FreeDV RADE: An Open-Source Digital Voice Mode for HF that Beats SSB at Low SNR
Thank you to Rebecca Key (KO4KVG) for writing in and sharing with us an article she's written over on the ARDC website about a relatively new amateur open-source radio digital voice mode called FreeDV...
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Carshepherd: An Android RTL-SDR App For the Early Awareness of Nearby...
Thank you to Cees for writing in and sharing his Android app, "Carshepherd," which is currently in the pre-release stage. Carshepherd works with a connected RTL-SDR and TETRA antenna to give drivers...
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TunerScope: A Browser App to Help Optimize HDTV Antenna Positioning with an...
Thank you to Luke Berndt for writing in and sharing with us a new RTL-SDR browser-based app he's created called TunerScope. TunerScope is a spectrum analyzer program that focuses on helping users in...
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CellScope: LTE Sniffing on Windows
Over on YouTube, Sarah from the SignalsEverywhere YouTube channel has uploaded a new video showing a new open-source program she's developed called CellScope, which is used for LTE sniffing. She notes...
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isTRAIN: Detecting if a Train is Blocking a Local Crossing By Listening to...
Jhestyr takes pride in being punctual, but a local railroad crossing keeps getting in the way. Trains sometimes park across it for hours at a time, and there is no way to know one is sitting there...
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War Driving for DECT Devices with a HackRF and Android Device
Over on her YouTube channel SignalsEverywhere, Sarah has uploaded an interesting video showing her doing a wardrive for DECT devices, with an Android device connected to a HackRF, running her own...
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InmarScope: An Inmarsat AERO and STD-C Decoder with Multichannel Decoding and...
Over on the SignalsEverywhere YouTube channel, Sarah Rose has released InmarScope, a multichannel L-band Inmarsat decoder that connects directly to an RTL-SDR, Airspy, or HackRF. The software can...
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GopherTrunk: A New Pure-Go Trunked Radio Scanner Supporting P25, DMR, TETRA,...
Thank you to Matt Cheramie, who wrote in to let us know about his new software called GopherTrunk, a new RTL-SDR compatible radio scanner that follows digital trunked-radio voice calls and decodes them...
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Student Arrested in Taiwan for using SDR and Handheld Radios to Halt Four...
The Taipei Times has reported that a 23-year-old university student in Taiwan has been arrested after using a software-defined radio and hand held radio to hack into Taiwan High Speed Rail...
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P25-Survey: A Tool for Scanning and Logging P25 Control Channels with an SDR
Over on GitHub, programmer blantonl has released p25-survey, a Python tool that scans a frequency range with an RTL-SDR, Airspy or HackRF and identifies any P25 control channels present. For each one...
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Tactical_FSK_Modem: An Open Software MFSK Image & Text Modem for PC and Android
Thanks to Ibrahim (YD1RUH), who wrote in to share his open-source open-software project Tactical_FSK_Modem, which turns a standard PC or Android device into an audio-based MFSK transceiver for sending...
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Exploring the Privacy Risks of Tire Pressure Monitoring Systems with RTL-SDR
Tire Pressure Monitoring System (TPMS) privacy concerns are a topic that comes up every now and then. Most modern vehicles have wireless tire pressure sensors that communicate with the vehicle's...
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Frugal Radio: Beginners Guide to P25 Decoding with the Latest DSD Plus Release
Over on his YouTube channel 'Frugal Radio', Rob has uploaded a comprehensive video detailing how to set up the latest DSD Plus release for P25 Public Safety decoding. Back in December 2025, we posted...
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Multimon Pager Decoding on Android
Sarah (aka SignalsEverywhere) has recently released another open-source Android app that enables the multi-signal decoder Multimon-ng to be used on Android. Multimon-ng is a commonly used decoding app,...
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Pocket 25: An Android P25 Phase 1 Digital Voice Radio Decoder
Thank you to reader "EN53" for submitting news about a newly released open source Android app called Pocket 25. Pocket 25 is an Android-based APCO Project 25 (P25) phase 1 digital voice decoder based...
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