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  • Topics
    • Step 1 – Basic Diagnosis
    • Step 6 – Dealing with Neighbours
    • Step 2 – Locating the noise source
    • Step 3 – Noise reduction in your shack
    • Step 5 – Power Line Noise
    • Australian Regulations
    • Solar Panels & Inverters
    • When you cause interference
  • Start here
  • Support

QRM.GURU

  • Home
  • Topics
    • Step 1 – Basic Diagnosis
    • Step 6 – Dealing with Neighbours
    • Step 2 – Locating the noise source
    • Step 3 – Noise reduction in your shack
    • Step 5 – Power Line Noise
    • Australian Regulations
    • Solar Panels & Inverters
    • When you cause interference
  • Start here
  • Support

Article Categories

An Overview of the QRM Guru Process(5)

  • QRM Guru offers email support
  • Caution when working with mains power
  • QRM Guru Process
  • Newcomers start here
  • QRM Guru Videos

Announcements(9)

  • QRM Guru offers email support
  • QRM Guru & RASA responds to ACMA announcement
  • QRM Guru News Update
  • Club Visits 2022
  • WIA Awards QRM Guru developer with Technical Excellence Award

Australian Regulations(5)

  • QRM Guru News Update
  • Dealing with the Regulator
  • Lodging Complaints
  • Compliance & Labelling
  • ACMA Regulations

Case Studies(24)

  • Mitigating Amateur Radio Interference to VDSL2
  • Low power wireless charging: friend or foe?
  • The saga of the network switch and 20m QRM
  • How’s your noise floor?
  • QRM to Telstra NBN FTTN modem

Mobile Installations(1)

  • Automotive noise

QRM Guru Lab and Product Tests(13)

  • The truth about ferrites
  • Anatomy of a Philips LED Light
  • LED Lights – Test Results
  • Noisy fluorescent lights
  • LED Lights – Recommendations from Hams

QRM Kill Kits(4)

  • Ultrasonic Receiver Kit
  • Direction Finding (DF) Loop Antenna Kit
  • HF/VHF Station QRM Kill Kit
  • Club QRM Kill Kit

Step 1 - Basic Diagnosis(8)

  • HDMI Interference
  • The saga of the network switch and 20m QRM
  • How’s your noise floor?
  • The Effectiveness of Ferrites
  • Start here – Perform Basic Diagnosis

Step 2 - Locating the noise source(14)

  • Direction Finding (DF) Loop Antenna Kit
  • Finding power line noise using a VHF AM receiver
  • Finding and killing QRM in the home with ferrite toroids & snap-ons
  • DF Loop kit and noise cancelling techniques
  • Tracking down interference in the 2m amateur band

Step 3 - Noise reduction in your shack(9)

  • The truth about ferrites
  • HF/VHF Station QRM Kill Kit
  • Eliminate Interference with the MFJ-1026 Noise Canceller
  • Finding and killing QRM in the home with ferrite toroids & snap-ons
  • The best thing you can do to reduce noise in your radio shack

Step 4 - Techniques for Resolving Noise(17)

  • Mitigating Amateur Radio Interference to VDSL2
  • The saga of the network switch and 20m QRM
  • Caution when working with mains power
  • Noise Canceller Kit – from VK5TM
  • Plasma TV RFI – symptoms & possible cures

Step 5 - Power Line Noise(6)

  • Finding power line noise using an ultrasonic receiver
  • Finding power line noise using a VHF AM receiver
  • Lodging Complaints
  • Locating Power Line Noise
  • Power Line Noise – Template for submission to Electricity Distributor

Step 6 - Dealing with Neighbours(3)

  • Dealing with neighbours – a step by step guide
  • Log Sheet – Neighbours complaining of interference
  • Neighbours

Support for Solar Panels & Inverters(5)

  • Can Amateur Radio & Solar Power Co-exist? QST Article
  • Noisy Solar Systems
  • Installing a Solar PV System
  • Solar System Suppliers that Comply
  • Solar Panels & Inverters

Templates & Forms(6)

  • Log sheet – On-site Visit
  • Draft letter to send to Solar Installer
  • Log Sheet – Profiling the Noise
  • Power Line Noise – Template for submission to Electricity Distributor
  • Log Sheet – Neighbours complaining of interference

When you cause interference(4)

  • QRM to Telstra NBN FTTN modem
  • Radial Free Verticals
  • No House Electrical Earth… interference to neighbours
  • Log Sheet – Neighbours complaining of interference

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