QRM Guru offers email support

QRM Guru Service Desk – online ticketing system 30 July 2022 QRM Guru and RASA are pleased to announce that effective 1 August 2022 we’ll be offering email and limited telephone support for amateurs seeking additional assistance with their QRM & RFI problems. A service desk has been implemented using Freshdesk.  This works on the […]

Read More

Caution when working with mains power

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 […]

Read More

QRM Guru Process

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 […]

Read More

Newcomers start here

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 […]

Read More

QRM Guru Videos

All these instructional videos are accessed from various posts on this website. They a presented here as an instructional series.   Video 1 – An Introduction to Interference Video 2 – DF Loop Construction Video 3 – Gathering Information Video 4 – Locating the noise source Video 5 – Complaints Processes Video 6 – A […]

Read More