Path dependent RFI tools include ferrite chokes, power line filters and noise cancellers. Using these can make all the difference between listening to signals and listening to interference. Read more
Tag: RFI
Primary RFI Paths – A Mitigation Framework
Between sources and victims of received RFI are four primary RFI paths. Each requires understanding and applying different mitigation approaches. Read more
Residential RFI Antenna All Around You
Household wiring is a near perfect residential RFI antenna. It combines conducted and radiated paths to drown out your shortwave receiver. Read more
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
SdrDx Spatial Filtering with Afedri Receiver
I finally got around to SdrDx spatial filtering. The phasing control in SdrDx software works really well with my Afedri AFE822x. Read more
AFE822x Coherent RFI Filtering Performance
My AFE822x coherent RFI filtering goal has been accomplished. Every SDR should be capable of spatial interference filtering techniques. Read more
SDR Spatial Filtering Demo – Watch It Work
This GNURadio SDR spatial filtering demo shows how you can eliminate local RF interference using coherent sampling on two radio channels with different antennas. Read more
SM2BYC Remote SDR with Directional Antennas
Here is a special feature about my favorite remote listening site, the SM2BYC Remote SDR available on the Internet. It even has low noise directional antennas for medium wave. Read more