A great demonstration video from Hayden VK7HH and this Noise Cancelling device in a real world scenario. Thanks Hayden.
From Josh KI6NAZ Josh has put together a great Youtube video on reducing RFI in and around the house. Using simple techniques to find the noise source and then using toroids and snap-ons to reduce or illuminate the noise. A very useful video. “For most of us, RFI is around us all the time. It […]
We’ve spoken about the importance of having good house-keeping in your goal for a low noise environment. Other posts on QRM Guru talk about various techniques and tools you can use, but in this video Peter, VK3YE provides a great practical demonstration of how you can reduce noise in your shack. Using Ferrite rings and […]
A VK6 member found this very useful reference on noise suppression. Full acknowledgements to G8JNJ. Whilst this document has been written from a UK perspective, it is very useful for: noise suppression in consumer appliances & switch mode power supplies reducing noise in the shack using ferrite rings to suppress noise understanding RFI G8JNJ Notes […]
Whilst a balun is usually associated with reduced unwanted transmission line radiation (eg. from the feedline and power cord), a balun can also help minimise unwanted noise picked up by your feedline. This short video provides a practical demonstration. With thanks to Davide IZ2UUF. You can purchase commercial baluns or make your own. There are […]
Good RF grounding should provide a low resistance path to ground for any RF noise which is present. A low resistance path to ground ensures that the noise is conducted away to ground instead of being radiated. In addition, your station should also have a quality low resistance path to ground. Refer to this link […]
The following products are availbale from Jaycar and Altronics. We’ll add to this list in the coming weeks and months as we get feedback from VK hams. Ferrite suppressors are available in Australia from the following suppliers: The following products can be obtained from Jaycar. Don’t forget to register as a Nerd and get discounts! […]
That Horrible Noise The first place to address unwanted noise is in your own shack. This process begins when you design and set-up your radio shack. Consider non-RF noise as well; try to locate your shack away from the TV, living room or kids bedrooms. Use the following guidelines as a starting point: Earth […]