An Introduction to Radio Trunking Systems with a Focus on P25 and SDR Trunk

Thank you to Carl Makin (VK1KCM) for submitting a video that he produced for his local ham radio club in Australia. In the video Carl first gives an overview on radio trunking systems and explains why they are used to improve spectrum efficiency.

He goes on to focus solely on P25 digital voice trunking networks. Carl is based in NSW, Australia so he talks a bit about what P25 services are available in his area and which ones are unencrypted. Finally he demonstrates the SDR Trunk software decoding one of his local P25 networks with two RTL-SDR dongles, and explains what information we can see in the software.

Carl VK1KCM on P25 Trunked

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