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Showing posts from October, 2023

OpenWebRX - SDR

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Edit, 11th August 2024: This system is currently offline. 1. Introduction Software Defined Radio (SDR) is a way of turning a computer, phone or tablet into a radio receiver, covering a wide range of bands, modes and typically, a frequency range of 0 - 2GHz. For those not involved in the hobby, most of that probably means very little. This post will explain a little about what this means then how to access an online SDR that is operating from my home. 1.2 SDR SDR is a catch-all term describing a means of accessing radio signals through a device plugged into a computer or other device. Once signals are received, they are "decoded" by the computer and produce sound or data depending on what is being received. Advantages of SDR are: Wide frequency range - covering 0 - 2GHz (others cover different ranges but these will be useful for most users). Cheap - I use two of these  and find them excellent receivers - these kits come with a basic antenna setup which is often "good eno