Radio Frequency Interference (RFI), QRM or noise, has become one of the single largest impediments to HF operation in any urban environment. The QRM Guru Process provides a high level overview of the steps you need to follow to identify and resolve your RFI/QRM issues.
It is an iterative process; and as you resolve one noise source, others may appear.
The Process Diagram is not prescriptive. You may need to repeat certain steps, especially in relation to “Locating the noise source” and “Techniques for resolving noise“. Keeping a detailed journal will help you work through the process, drill down in your investigations and test potential solutions.
You can click on the diagram below to open a dynamic version of the diagram which contains hot-links to relevant QRM Guru posts.
- this process diagram is a new addition. We welcome your feedback and suggestions.