My remote control SDR antenna switch is up and running. Now, I can switch SDR and antennas by remote control. Read more
Tag: magloop
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
Comparing Antennas During Ham Radio Contests
Ham radio contests are a great opportunity to check your station’s performance, especially comparing antennas and their relative performance.
Wideband Loop Array Performance Review One Year In
It’s been just over one year since my wideband loop array went into operation. I thought it time for a candid loop array performance review. Here goes. Read more
Wideband Loop Signal Chains with Software Defined Radio
You need to understand your wideband loop signal chains and their limitations. Then, you can get the most performance out of your radio investment. Read more
Plastic Worm Gear to Tune Loop Capacitor
So, here’s my mostly plastic worm gear for tuning a butterfly capacitor in a small transmitting loop. If you have a 3D printer, you can make one of these for under $10. Read more
Mostly Plastic Rotator Works – Passes Smoke Test
Well, my design for a cheap, mostly plastic rotator for small loop antennas works. It took me a while to get this built. 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