shortwave

High performance SDR band scanner - detects, demodulates, and records radio transmissions automatically with CTCSS/DCS detection, three-layer noise rejection, and broadcast-standard metadata.

A list of shortwave stations. This list is intended for a plugin for SDR++

ATS Mini ESP32-S3/Si4732 radio web controller with searchable shortwave, AM and FM stations, USB tuning, RSSI scanning, and live Morse code decoding.

HF/ionospheric propagation prediction and live space weather for hams and SWLs. Android, Linux, Raspberry Pi. MIT.

Text-mode SDR radio interface for Web888 with real-time waterfall, station databases, and AI-powered transcription

Automatic HF wefax decoder requiring SDR Console and any SDR receiver, with automatic tuning using schedules, image enhancements, frequency learning.

A UVB-76 style numbers-station simulator: coded groups and buzzer/static broadcasts.

Receive-only shortwave listening web app for the Icom IC-7300

GUST — Generic Universal Shortwave Telemetry. A terse HF broadcast protocol inspired by Olivia, optimized for sub-5-second transmissions.

Kitchen radio, digital picture frame and, with an RTL-SDR stick, a world receiver: web radio, DAB+, FM, shortwave, podcasts, gallery, calendar and amateur radio in one interface for Linux and the Raspberry Pi. Built for touch, works with mouse and keyboard.

Convert audio into AM/shortwave radio-style mono with hiss, fading, and crackle.

Self-surfing shortwave radio based on KiwiSDR receivers

A modal terminal oracle that finds its answers in radio noise, public feeds and the Library of Babel

SSFR Software Package

An exploratory repository documenting number stations, number patterns, symbolic frameworks, and numerological interpretations.

HF / shortwave SDR receiver for the SDRplay RSP1 — PyQt6 GUI, DSP, test suite and Debian packaging