An off-the-shelf RTL-SDR unit.

Quick Start Guide

433 MHz is not dead! Using an ESP32 board with LoRa module to talk

Electrosense: RTL-SDR Based Crowd Sourced Spectrum Monitoring with

Project, RTL-SDR With Upconverter and Case

Getting Started with RTL-SDR and SDR-Sharp by Adafruit Industries

downconverter

RTL-SDR Tutorial: Setting up and using the SpyServer Remote

An off-the-shelf RTL-SDR unit.

Radio On A Tight Budget-RTL-SDR For Everyone, PDF

OTA: LimeSDR on the Traverse Ten64, LimeRFE Production Update, and

Overview, Freq Show: Raspberry Pi RTL-SDR Scanner

Angle of arrival estimation in a multi-antenna software defined