QRM.guru has been developed to assist radio hams in dealing with RF noise.  This is an educational and reference resource.  The information provided on these pages is not unique or regarded as a new discovery.  QRM.guru, RASA and the developers provide the information on these pages in good faith and there are no commercial interests.

The Radio Amateur Society of Australia is the sponor of QRM.guru.  Much of the content has been derived from various sources, including the public domain, published works and project work by developers and VK radio amateurs.  All references to published works are acknowledged.

The objectives of QRM.guru are to provide an integrated online educational resource to assist all radio hams in:

  • better understanding RF noise sources that impact on their enjoyment of the hobby;
  • providing a series of tools, techniques and guides to assist in locating and reducing or eliminating noise sources;
  • providing guidance on how to select consumer devices that comply with regulations and do not emit unwanted RF noise;
  • encouraging radio hams and clubs to collaborate in reducing noise and promoting the hobby;
  • developing and utilising our technical skills to resolve issues that impact on our enjoyment of the hobby, even when the interference is not of our responsibility;
  • assisting VK Hams in getting more enjoyment out of the hobby.

Users are invited to provide feedback and additional content to make this resource more useful for all radio hams.  If you have any case studies, methods or experiences that may add to the overall value of QRM.guru, please send us an email with your experiences.

Whilst QRM.guru has been developed for VK hams, it will be of use to hams worldwide.

Please feel welcome to surf this website.  Check out various pages, forms, videos and links.  If you find an error, broken link or something you think could be done better, please drop us an email.  This is a resource for hams, by hams.


The developers of QRM.guru acknowledge the following reference sources:

  • Elimination of Electrical Noise (Don Pinnock, RSGB)
  • ARRL Handbook (ARRL)
  • Low Band DXing (Delvodere)
  • RSGB Radio Communication Handbook (RSGB)
  • Interference Handbook (William Orr)
  • RFI Handbook (ARRL)
  • QST (ARRL)

QRM.guru also acknowledges and thanks the many ham radio enthusiasts and other sources who have made information publicly available on the internet.  QRM.guru references many external links as useful sources of information, however, cannot be held responsible for the accuracy or results of any such references.  If you find any broken links please email us and we’ll do our best to find a replacement reference.

All contributors will be acknowldged.  This resource is for hams, by hams.  With thanks to VK Hams: VK2CA, VK3XP, VK3BUF, VK3QB, VK4DU, VK3YB, VK3BRW, VK3GHM, VK3NCC, VK3MET, VK3RU, VK6NAD, VK3YBA, VK5HCF