Troubleshooting and Interference: The Practical Guide to Finding, Fixing, and Preventing Radio Frequency Interference (RadioBook) by Greg Weir

Radio frequency interference can turn even a carefully built amateur radio station into a frustrating mystery. A strange buzz appears on 40 metres. A neighbour’s LED lights wipe out an entire band. A nearby transmitter overloads your receiver. Digital devices, switching power supplies, solar installations, Ethernet cables, utility equipment, and even your own station can create noise that seems impossible to trace. Troubleshooting and Interference gives you a practical, systematic method for finding the source, understanding how the unwanted energy is travelling, and choosing a remedy that addresses the real problem. Instead of guessing, replacing equipment at random, or attaching ferrites everywhere and hoping for the best, you will learn to approach interference as a three-part system: Source: What is creating the unwanted energy? Path: How is that energy reaching the affected equipment? Victim: Why is the receiving device responding to it? From that foundation, the book guides you through the complete troubleshooting process. You will learn how to: Recognize fundamental overload, harmonics, spurious emissions, intermodulation, and broadband noise Distinguish conducted interference from radiated interference Locate noise using portable receivers, directional antennas, loops, body fade, SDRs, spectrum displays, and near-field probes Read more

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