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Reviewed in the United States on January 3, 2025
I ran eight turns of feedline through this, located before the feedpoint of my end-fed antenna, and my laptop's trackpack has finally stopped glitching when I transmit on 80 meters. I haven't compared this to the name-brand, but I'm a happy camper.
George Gilman
Reviewed in the United States on January 2, 2025
Type 31 toroid ferrite cores are primarily used for noise suppression for lower frequencies in the HF spectrum. As a licensed ham radio operator, I put this to use to reduce RFI coming into the shack. This is very easy to do simply by making a number of turns of the feed line through the center of the toroid and then securing with a plastic zip tie.This toroid is good quality and I expect it to last for years. With the size, I can easily get a good number of turns through it to reduce RFI. Highly recommended.
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