So how do you use a wideband loop array with a single channel receiver? With a receive antenna phasing controller, of course. Read more
Tag: SWL
Tracking Down Antenna Switch RFI Ingress
Well, it’s settled. I have a major antenna switch RFI ingress problem. As much as 30 dB on some frequencies. Sigh. Read more
Antenna Switch Port Isolation Considered
My homebrew antenna switch port isolation is decent, but not great. But too much RFI is being fed though the outputs. Read more
Active Antenna Amplifier Relay Control
Wideband loop amplifiers are easily automated with active antenna amplifier relay control, all for a few dollars. Read more
Dual Channel Antenna Switch with Relays
My homebrew dual channel antenna switch is up and running. It let’s be switch pairs of antennas to a bunch of two channel diversity receivers. Read more
Homebrew Radio Switching Board
I am moving a large part of my shack to a wall mounted radio switching board. My goal is complete remote relay switching of antennas for my diversity receivers and loop array. Read more
Modern Diversity Reception at BayCon 2022
Earlier this month, I made a detailed presentation about Modern Diversity Reception at BayCon 2020, an online ham conference. Watch the video! Read more
Grey Line Propagation – Sunset in Madagascar
Grey line propagation enhancement is magic on the HF bands, for both ham radio and shortwave listening at long distances. Read more
Complex Antenna Controller with Relays
I have a new project using Arduino relays. It’s a complex antenna controller for my diversity receive system. Read more
Reading Your Ionogram – Keeping It Simple
Here are the basics for reading your ionogram. You can discover real time propagation conditions almost anywhere in the world. Read more