Let’s understand radio waves, and how they behave is different media including solid wire, free space and plasma. Read more
Tag: hamr
Basic HF Radio Propagation Refresher
Let’s do a level set on basic HF radio propagation through the ionosphere and around the world. Read more
My IoT Controllers with NodeMCU
Over the past six years, I have used NodeMCU for my IoT Controllers. Cheap, cheerful and very functional. Let’s dig in. Read more
ANAN-7000 DLE MKII Review – Six Months In
A year has passed since I ordered my ANAN radio, and six months since it arrived. Time for my ANAN-7000 DLE MKII Review. Read more
Remote Antenna Switch Project – Why Bother?
Why bother with a lengthy and oft frustrating remote antenna switch project? Well, the joy of success, of course. Read more
Windows Desktop Controller for Loop Array Switching
While my dual channel switch can be run over any TCP socket, I though it might be fun to program a Windows desktop controller using Delphi. Read more
Loop Array Distribution System for Diversity Reception
I finally have a noise-free loop array distribution system up and running. Performance is near perfect and I use it every day. Read more
Ultimate Antenna Switch for Diversity Reception
Today’s post is a tribute to the ingenuity and skills of Jim VE6JF. He designed this ultimate antenna switch to eliminate RFI from microcontrollers. Read more
Remote Antenna Switch Enclosure – Plastic or Metal
My 6:1 remote antenna switch enclosure turned out well. It’s made from plastic with metallic spray for shielding. Read more
Remote Coaxial Antenna Switches from China
For the price, these remote coaxial antenna switches from China provide an easy way to switch a wideband loop array between multiple dual channel receivers. Read more