DuWayne's Place

I started working on the SI5351 antenna analyzer that I was playing with.  I wanted to check different low-pass filters to clean up the sq...

Because of a downed tree during a storm I had to put up new antennas.  I had limited space so waned to go to a multi-band antenna.  From pre...

One of the first pieces of test equipment I decided to build was a QRP dummy load. The first one was just twenty 1k  1/2 watt resistors on ...

I had an old QRP  transceiver that I wanted to start using.  I had modified it with a multi-turn  pot, which made adding a small counter one...

Because of size, I decided to use the Arduino Nano and Mini-Pro closes for most of my projects.  I ordered a couple of the NOKIA 5110 LCD mo...

After I retired about two years ago and got back into Amateur Radio, I realized that most of my test equipment was very much out of date and...