Listening to 10GHz Rain Scatter in Esslingen using a LNB

Today I was able to receive multiple 10GHz beacons via Rain Scatter thanks to a small thunderstorm crossing my hometown. As I’m living in a deep valley this...

Watching HF band activities using Grafana

The best tool around for watching and analyzing band activites is wspr.live. It allows ham radio operators to watch all WSPR activities in their local grid ...

High IO-Wait and lags under Linux after wiping SSD

I was experiencing high IO-Wait after moving a PC from Windows to Linux. According the buffered reads the SATA interface wasn’t the bottleneck. # hdparm -t...

Building an efficient End-Fed Half Wave transformer using special Ferrite 2643625002 from Fair-Rite

A few months ago I was reading an article written by Owen Duffy that a compact, low-loss QRP-capable EFHW (1:49) transformer could be build using the Fair-R...

Useful, affordable tools for daily embedded development tasks

This is a more or less incomplete list of useful tools which are helping with the daily business of developing embedded stuff. FTDI FT2232HL Can be easily ...