My small changes to phasing creates remarkably different endfire loop array patterns. I can demonstrate these with empirical results and analytical modeling. Read more
Category: Shortwave Radio
Loop Array Pattern Calculations
Using an Excel spreadsheet, I have created an easy way to visualize my loop array pattern as I change frequency and phasing in the dual channel SDR. Read more
Antenna Fun with Array Delay
Beamforming, or signal phasing with multiple antennas, means understanding array delay through the complete system. Here’s how it works. Read more
Diversity Reception Investment
I thought I would take a step back today and review my diversity reception investment. Along the way, I will try to answer the question “is it worth it”? Read more
Trans-Pacific DX on Medium Wave – Get Up Early
After many years, I can finally receive Trans-Pacific DX on Medium Wave here in landlocked Calgary, western Canada. But I need to get up early for this! Read more
Wideband Receiving Loop Array Up and Running
It’s taken a while, but I finally have my wideband receiving loop array up and running. And, it works great for medium and short wave listening. Read more
SDRplay RSPduo Noise Canceller
Create an RSPduo noise canceller with a simple connection to noise probe antennas. Your results will match those of the ANC-4 or MFJ-1026. Read more
Solar Cycle 25 Starts – It’s Official
Solar cycle 25 should be a repeat of our last eleven year cycle. For the next five years, though, high frequency radio propagation will definitely improve. Read more
Wideband Loop Helper Performance
My homebrew wideband loop helper performance demonstrates what you can achieve with simple circuits and a bit of effort at the workbench. Read more
Wideband Loop Helper Build
Overall, my wideband loop helper build was fast and simple. Everything was made easier with isolation milling a small PCB on my CNC. Read more