Posts

2023

| Infraschallmessungen mit einem Sensirion SDP600-25Pa

2022

| Using an ESP32 with ESP-IDF to push data into a InfluxDB using HTTP or HTTPS
| Flashing the (tru)SDX firmware using Linux
| Ultralight Dipole for 20m and 15m
| Having a closer look at a 10 Watt SMA DC-6GHz 50 Ohm load from Aliexpress
| Analysis of the Aliexpress FBP-144 BPF for the 2m band
| Splitable 12-El. 23cm Yagi from the eBay store 'wlan-antenne'
| LiteVNA sweep of the 2-El. 23cm Yagi from SG-Labs
| Listening to 10GHz Rain Scatter in Esslingen using a LNB
| Watching HF band activities using Grafana
| High IO-Wait and lags under Linux after wiping SSD
| Building an efficient End-Fed Half Wave transformer using special Ferrite 2643625002 from Fair-Rite
| Useful, affordable tools for daily embedded development tasks
| Minimal ESP-IDF Modbus TCP example
| ESP-IDF v4.4.1 is having a faulty OpenOCD and hidden Python 2 dependency coming from GDB
| Running a stratum 2 NTP server for ntppool.org on a VPS

2021

| Eine kompakte Empfangsbox für RS41-Wettersonden und LoRa-APRS
| Auf der Suche nach RS41 Wettersonden des DWD mit Sondehub, AWS S3 und Python
| Working portable from the western coast of Spain
| Winter/Autumn 2020: Working portable from Esslingen
| My 2m OpenWebRX Station for automatic FT8/QT65/J65/WSPR/APRS decoding
| Icom IC-705 QRM caused by USB CAT control
| Finding good ham radio portable spots using OpenstreetMap and Overpass Turbo
| Rhein/Ruhr/Ahrbruck Hochwasser 2021 - Sentinel-1 SAR-Satellitenbilder der Überschwemmungsgebiete
| On LiFePo4 Batteries
| 15V as shack voltage?