IK1ZYW Labs

T he RF noise and the extreme heat noticed during the very first use of this B3AC charger convinced me to have a look inside. Four screws ho...

After assembling my own Li-X battery packs I realised I needed a safe way to use their energy, and finally solve my fear of inverting DC pol...

According to recorded videos from //build/ 2013 conference, Win8.1 will support (again) I/O devices. Fortunately MS offers a Win8.1 Pro prev...

Bluetooth-to-CAT dongles for FT-817/857/897 use the Bluetooth SPP protocol ("Serial Port Profile") which does not seem to be ava...

T he Li-ion/poly charger finally arrived from China. At less than 10USD shipped I expected it to get the job done and nothing more. In 1...

Yesterday I didn't use a high-end antenna for my sporadic-E QSOs, not even an antenna in a good position! When propagation helps, a...

I was home this time! A strong sporadic E opening reached 144 MHZ today. I could hear DX traffic on the rubber duckie antenna, indoor. How...

This battery pack worries me, and I created it! You are looking at a 4S(1P) Li-ion battery and charging electronics assembled out of ...