Every ham or shortwave listener struggles with local RFI. This article kicks off a new series on how to use noise cancelers and get your spectrum back. Read more
Birds are nice to have in your neighborhood but not in your radio. Computer monitors and network gear are a frequent source of RFI birdies. Read more
Governments everywhere are pushing adoption of LED bulbs. Great idea, but will they cause radio frequency interference? Let’s find out. Read more
A recent article in the Calgary Herald described transmitting power through soil. Apparently, researchers at the University of Alberta have managed to send low-voltage electricity safely through the earth. Read more
The world’s leading radio spectrum regulator may finally be taking the noise floor seriously.
Ham radio transmissions can interfere with television reception. This is called television interference, or ham radio TVI. Consumer adoption of cable television has significantly reduced ham radio TVI. But the introduction of IPTV, or television over phone systems, has brought ham radio TVI back, often with a vengeance. Here’s why.
Radio frequency interference was a problem fifty years ago. It is a problem today. We can actually learn a lot from this very old presentation. Enjoy!
Yes, a noise canceller can work well. But success with a noise canceller really, really depends on how well you position the noise antenna, sometimes called a noise probe. Here’s what you need to know to set up your noise canceller and its noise probe. This is stuff I learned by experimenting and goes beyond what you find in the manual.
People who enjoy listening to the High Frequency radio spectrum (3-30 Mhz) face an ever increasing problem of Radio Frequency Interference. Think of RFI as noise pollution to the radio spectrum. This video describes some RFI problems and details a series of diagnostic steps that can help identify noise sources.