Household wiring is a near perfect residential RFI antenna. It combines conducted and radiated paths to drown out your shortwave receiver. Read more
Author: John VE6EY
How EMI Filters Work – Check the Details
You can learn a lot about how RFI is conducted by studying how EMI filters work. Let’s check one out in detail. Read more
Broadband RFI Spectrum and Transmission Paths
We listen to our radios in a broadband RFI spectrum conducted and radiated all around us. Read more
RFI Transmission Paths – How Does It Get Into My Receiver?
Your house and neighborhood are full of RFI transmission paths. It’s time to understand these better as we fight the effects of interference on our radio hobbies. Read more
LTSpice FFT Spectrum Analyzer for Amplifiers
You can use an LTSpice FFT to check expected performance from an amplifier, and compare simulated results to the data sheet specifications. Read more
Surface Mount Toner Transfer Experiments
My surface mount toner transfer experiments led me to move from using magazine pages to heavier photo paper stock to get better results. Take a look! Read more
Wideband Loop Base Amplifier Feeds Receiver
We complete the electronics requirements for our loop antenna design with a wideband loop base amplifier to match the transmission line to a receiver. Read more
KiCAD PCB Design – A Fully Integrated Solution
KiCAD PCB design is something every electronics maker should learn and use for their printed circuit boards. It does pretty much everything and it’s free. Read more
Surface Mount PCB Artwork – Using Inkscape
Surface mount PCB artwork requires you to print designs smaller than a grain of rice. Is this even possible with my home laser printer? Read more
Alexa Arrives – Amazon Echo for Christmas
When Alexa arrives in your house – and it will – you need to make some decisions. Try to make a few of these decisions consciously. This tech is so compelling. Read more