Well, it’s settled. I have a major antenna switch RFI ingress problem. As much as 30 dB on some frequencies. Sigh. Read more
Category: Electronics Projects
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
SDR Antenna Switch Up and Running
My remote control SDR antenna switch is up and running. Now, I can switch SDR and antennas by remote control. 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
My Electronics Workbench All Set Up
Here’s my electronics workbench. What does yours look like? Let me know and I will share the information around. Read more
Loop Remote Control Electronics Board
Here is my loop remote control electronics board. Not a PCB, but a 3D printed mount for all the electronics modules. Read more
L293D NodeMCU Motor Shield Works Fine
My low cost L293D Motor Shield will do the trick for remote controlling a new loop antenna. You can use a stepper to tune the antenna with rotation provided by a larger DC motor. Read more
Arduino Returns to My Maker Workbench
After four years absence, Arduino returns to my top of mind. Time to do some more remote motor control projects. Read more