I thought it was time to buy some tools so I could properly crimp coaxial cable connectors. Here’s what I found. Read more
Understanding Our Ham Radio Hobby
Our ham radio hobby can be wide and deep. Offering lots of opportunities for satisfaction and fun. And learning, too. Read more
Becoming Proficient in Ham Radio and Other Hobbies
Becoming proficient in ham radio is a journey of moving forward, step by step. My new series of articles will provide a complete process roadmap. Read more
Test Your Cables Regularly with NanoVNA
You should test your cables regularly. Some may go bad, especially cheap or older ones, with poor connectors or breaks. Read more
Antenna Switch Adventures – Looking Forward
My antenna switch adventures have provided a valuable learning opportunity. Especially to reduce noise in RF circuits under Arduino control. Read more
Sainsmart Relay Antenna Switch Disappointment
Well, it’s time for me to declare my DIY antenna switch disappointment. I can’t get rid of the noise n matter what I do. Read more
Using Your Antenna Multicoupler with Several Receivers
My 8 channel antenna multicoupler, receive only, is back in use and performs magnificently for receive use. Read more
Arduino Sleep Modes and RFI
Several folks suggested that I try putting my Arduino to sleep in an effort to reduce RFI with my relay controlled antenna switch. So, here are some experiments with Arduino sleep modes. Read more
Reducing RFI with PCF8574 GPIO Expander Board
I was able to use a PCF8547 GPIO Expander Board to reduce but not eliminate RFI from my Arduino. Here’s how that works. Read more
Using Loop Array with a Single Channel Receiver
So how do you use a wideband loop array with a single channel receiver? With a receive antenna phasing controller, of course. Read more