240V MAINS POWER IS DANGEROUS AND CAN KILL Some articles, case studies or posts may talk about the need to filter your main power supply. There are mains filter circuits and kits available online and some may be referenced on QRM Guru pages or external links. QRM Guru and its developers (and RASA) advise against […]
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 […]
Are you new to Amateur Radio or don’t know where to start? Then, start here… If you’re new to Amateur Radio you’re likely overwhelmed with all manner of information and options on where to start. More than likely, if you live near a city, or in the suburbs, and you operate on HF, you’re quite […]
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