do1slo: Curious HAM and Beautiful Python …

Often I need to write things down until I understand them …

LibreVNA Calibration

py

equipment

Usually a simple calibration consists of a short, open and load measurement for each of its ports, added by a through measurement while connected port 1 and port 2 by a…

LibreVNA SCPI API

py

equipment

The user interface for normal usage can be found in the LibreVNA github repository

install and run jupyter-notebooks

py

I am a big fan of reliability, so I prefer Debian GNU/Linux stable version, Trixie for now. So I can dive it into as deep as I like. Beautiful Python and its batterys of…

Impedance calculations

Filter

equipment

Anritsu MN510B1 + MiniCircuit attenuators

attn

equipment

13cm Interdigital-Filter

Filter

equipment

Recently I found a 13cm filter at a fleamarket , probably at Bochum radiotelescope, I don’t remember.

LibreVNA first measurement

Filter

equipment

It is a Zeenko product. Plain aluminum with some LEDs and four SMA-connectors.

Wilkinson divider example

skrf

Some month ago I found the python package scitkit-rf, so I was in need of a playground, python virtual environment fits best.

Quartz simulation example

simulation

skrf

Dieses Beipiel wurde durch ein VNA-Seminar des DARC G01/G02 in Aachen im Juni 2026 angeregt.

Powermeter

equipment

As C language was familiar to me, I had the idea of building a RF-Powermeter with an Arduino and a Log-Amp AD8317 from Analog Devices.

Welcome To My Blog

This is mostly about electricity, energy and the like.