Locating Power Line Noise – case study VK2CA

The below videos give a real world example of power line noise suffered by Allan VK2CA.  The second video shows first hand how you can use a simple VHF/UHF receiver to narrow down the offending power pole.   QRM.guru thanks Allan for providing these videos.     This video illustrates first-hand the horrible sounds that […]

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Step two to narrowing down the offending noise source

Now you’ve spent some hours playing detective and believe you have a good handle on the location and source of the noise.  For example: The two adjacent neighbours are radiating significant broadband noise, indicative of switch-mode power supplies, as well as what may be an auto battery charger. (insert a short 20 sec grab from […]

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Step one to locating the noise source

Once you have undertaken some basic analysis of the noise source (from the comfort of your shack) you should have a basic understanding of its characteristics. You will also have completed the following templates in order to assist in narrowing down and locating the noise source: Noise Profile template Noise Log template     You […]

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How to locate the noise source: building a DF Loop

To locate the noise source, you’ll need some tools.  This short video explains how to build a simple non-resonant direction finding (DF) antenna. It would also be useful to have a broadband receiver covering 100KHz to 1GHz, for example the ICOM T90A.  As always, dont forget to make notes as you carry out your detective […]

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Identifying the noise – Useful links

This post provides links to some useful sites and resources to help you identify your noise.  Please send us any additional resources or links you know about.   This is a good all-round website for helping learn more about various noise sources: Signal wiki – identifying noise Noises around the home: Noise sources around the home and Household […]

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Neighbours

DEALING WITH NEIGHBOURS You need to get along with your neighbours, not just today, but for many years to come. This article is  about people skills, diplomacy, empathy and communication.  Always maintain a friendly and co-operative stance when dealing with neighbours.  Maybe they could become friends?  But not so much they want to take up […]

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