kSDR

kSDR — an app for working with popular SDR receivers. It enables reception and exploration of radio signals for amateur and educational purposes. Currently supports the following popular USB SDR devices: RTL-SDR, HackRF, SDRplay (RSP), and others. Works directly via USB OTG. Features: - Receive radio signals with spectrum and waterfall display - Supports AM and SSB (LSB/USB) demodulation - Frequency memory presets - Adjustable gain and bandwidth settings - Low-latency audio output (<200 ms) - Transmit radio signals using your device’s microphone (HackRF only). With HackRF One, you can not only listen but also transmit — simply choose a frequency and modulation, and start broadcasting directly from your phone! - And more. Requirements: USB OTG support on your Android device A compatible SDR device (e.g., RTL2832U, HackRF One, RSP1/2, or msi2500-compatible device) ⚠️ Note: Core features of the app require a connected SDR device to function properly. A 5-day free trial is provided so you can evaluate the app before purchasing the full version.