If you operate on HF frequencies, you very likely have encountered Radio Frequency Interference from some electrical device in your house or outside your house. It can be broadband noise, raising the noise floor, making the copying of any signal very difficult. Or it can be specific frequency noise you can avoid by tuning away ten or twenty Hertz from the frequency-specific noise. WCARES member Paul Havlik (WD9IOK) has dealt with a particularly challenging and protracted RFI incident, and he takes us through all the twists and turns associated with its identification and mitigation.
Recorded at the WCARES monthly meeting in December of 2025.