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This website is dedicated to amateur radio, electronic tinkering, cybersecurity, retro computing, homelab building and other (mostly technical) topics. The idea behind this site is to document my various projects, to make them available to others and to myself, so that I don’t forget the solutions.
DISCLAIMER: Reproduction of my own projects or those of others presented here is at your own risk! I am neither responsible for any damage to the equipment involved nor for any potential injuries. This is a hobby website, all content should only serve as a suggestion and not as a copy template. Think for yourself and scrutinize my actions.
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Posts
- 2026-01-03 The three events that changed everything in my career
- 2025-12-30 Finding current ham radio satellite information
- 2025-12-14 Building the 3D printable Hadley Telescope
- 2025-11-05 I made radio contact with an astronaut in space!
- 2025-10-10 Fixing desense issues with V/U satellites
- 2025-10-01 CSN Technologies S.A.T. and the Icom IC-910H
- 2025-09-30 SAT-Cloudlog-Bridge: Log QSOs from S.A.T. directly to Cloudlog/Wavelog
- 2025-09-21 LEO SAT ground station v3: Upgrading from eggbeaters to a cross yagi setup
- 2025-09-18 satpasses - a satellite pass prediction HTML file generator
- 2025-08-19 Building a LEO SAT ground station - this time for real
- 2025-08-02 What is M17? Why is it so great? And how do I get started?
- 2025-08-01 Did you know you can send SMS via M17?
- 2025-07-29 A lightweight M17 Hotspot
- 2025-07-21 WPSD-M17 Community Fork
- 2025-07-18 Installation Script for the M17 CC1200 Hotspot
- 2025-07-17 Building the CC1200 M17 Hotspot
- 2025-07-14 Game Boy Classic: Backlight Mod and Recapping
- 2025-07-06 M17 Modification for the Baofeng DM-1701
- 2025-06-29 Building the M17 Nokia 3310
- 2025-06-19 Hugo Deployment via SCP and Github Actions
- 2025-05-19 Switching to QWERTY
- 2025-05-18 New Ham Radio Goals for 2025
- 2025-05-09 Logitech MX Ergo: Replacing the button switches
- 2025-04-24 Building the EAntenna Dual Band Moxon for 10m/6m
- 2025-03-13 YFKlog
- 2025-03-08 The 90s Gamer Experience: Handwritten Notes and Maps
- 2025-03-06 13m long vertical Antenna for 160-10m
- 2025-03-05 Shack Upgrade
- 2025-02-26 Statistics and Likes
- 2025-02-12 Homelab Wildcard Cert with Cloudflare and Zoraxy
- 2025-02-12 Cheap low-power Proxmox server
- 2025-02-12 Crispy Doom
- 2025-02-11 Doom WAD Logbook
- 2025-02-10 Experimenting with OpenSCAD
- 2025-01-28 Spiderbeam HD 12m Fiberglass Mast Mount
- 2025-01-11 Analog DXCC Mapping
- 2024-12-22 Building the Box73 S9 Level Generator Kit
- 2024-12-20 Repair of an AEG Lavatherm Dryer
- 2024-12-15 Troubleshooting a Mikrotik WiFi Access Point
- 2024-12-09 CatSync as a Workaround for local QRM
- 2024-12-05 Yaesu FT-710 TX Audio Settings for the M-70 Mic
- 2024-12-03 mAT-1500Pro: An emotional rollercoaster - or how I destroyed and repaired a brand-new ATU
- 2024-11-10 Shack Rebuild and Relocation
- 2024-09-28 Classic Computing 2024
- 2024-09-19 Ham Radio Article in the 2600 Magazine
- 2024-08-29 Remote ATU based on the ATU-100
- 2024-08-29 When Two become One: QubeDX v3
- 2024-08-24 QubeDX S - The QubeDX's little brother
- 2024-08-19 Radio Operation from the Lightship "Amrumbank"
- 2024-08-16 bear2hugo.py - Migrating from Bear Blog to Hugo
- 2024-08-16 DE-0094: A Vacation POTA by the Sea
- 2024-08-09 QDX and Fldigi on Debian Linux
- 2024-08-08 Notes on the QRP Labs QDX
- 2024-08-07 The QubeDX - a modular CubeSat style QRP Transceiver
- 2024-07-27 Playing Doom in 2024 (not only) on Linux
- 2024-07-25 Retro Console Color Schemes for Quisk
- 2024-07-06 The Beauty of Keyboard to Keyboard Digital Modes
- 2024-07-02 Quisk and Fldigi on Debian Linux
- 2024-07-01 What you should know before buying a Motorola Radio
- 2024-06-20 uBitx Linear Amplifier PTT Control
- 2024-06-10 The Matrix HAM Radio Space now has an AllStarLink Node
- 2024-05-29 On QSLing
- 2024-05-04 APRS TX i-Gate with APRX and the Universal Radio Controller
- 2024-04-06 USB-C Charger for the MD-(UV)380/RT3(S)/GD-77
- 2024-03-12 Replacing the Display of a Xiegu X5105
- 2024-03-07 Improved Hardrock-50 Widget for Quisk
- 2024-03-04 Hosting Gitea and FreshRSS on OpenBSD with httpd and relayd
- 2024-02-27 Hardrock-50 Widget for Quisk
- 2024-02-13 Automating Antenna Rotator Control with Cloudlog and Tampermonkey
- 2024-02-05 Vertical vs Cobweb vs Delta Loop
- 2024-02-03 Remote Control for the Hy-Gain AR-500X Antenna Rotator
- 2024-01-17 Construction of a M0PLK Delta Loop Antenna
- 2024-01-13 The added Value of buying used Computers
- 2024-01-02 The SDF Public Access UNIX System
- 2024-01-01 First-time activation of POTA park DA-0264
- 2023-12-31 Book review: "Amateur Radio Propagation Studies" by IK3XTV
- 2023-12-17 QuanSheng UV-K5: Custom Firmware and Programming on Linux
- 2023-11-05 PulseEffects as Equalizer for the QO-100 Linux Transceiver
- 2023-10-30 QO-100: Adding a second GPSDO as an LNB clock reference
- 2023-10-12 Successful Migration of my Shack PC to Debian Linux
- 2023-10-12 Hermes Lite 2 to Hardrock-50 Interface V2.0
- 2023-10-06 HA: Reading the energy fed into the grid from the meter
- 2023-09-08 Building a SHARI AllStarLink Node
- 2023-08-03 A Declaration of Love to Amateur Radio
- 2023-08-03 Eine Liebeserklärung an den Amateurfunk
- 2023-07-26 Improving the MD-(UV)380/RT3(S)/GD-77 Charger
- 2023-07-26 Remote Power/SWR Meter
- 2023-06-26 Pluto+ Firmware Update
- 2023-05-16 Hermes Lite 2 Interface Box (HR50 and Antenna Switch)
- 2023-05-14 Building the "DM4DS MIDI Box" SDR Controller
- 2023-05-02 Building a LEO SAT ground station: 70cm Eggbeater Antenna
- 2023-04-14 SDR Console: Fixing Audio Stutter Issues
- 2023-04-13 Adding a GPSDO to the Pluto+
- 2023-04-12 Building a QO-100 SDR Ground Station
- 2023-03-26 Building a Dual Band Slim Jim Antenna
- 2023-02-19 Activation of DA-0013 Stromberg-Heuchelberg Nature Park
- 2023-02-10 Offline/Mobile logging to QRZ.com with CloudLogOffline
- 2023-01-26 Wall Mount for CX600 Coaxial Relays
- 2023-01-24 Installing Cloudlog on OpenBSD
- 2023-01-13 Cheap and simple fully automatic antenna switching
- 2023-01-10 MX-P50M Protection Covers
- 2023-01-05 PowerPole Lid for the Miady 7.2Ah LiFePO4 Battery
- 2023-01-02 How long can I POTA with 6200mAh?
- 2023-01-01 MX-P50M Modifications
- 2023-01-01 Review of the PAC-12 Portable Antenna System
- 2022-12-04 Interfacing the BX-184 Microphone with the Xiegu X5105
- 2022-12-03 POTA activation of DA-0020 Neckartal-Odenwald Nature Park
- 2022-11-10 My gear for portable operations
- 2022-11-10 POTA activation of DA-0034 on the Feldberg
- 2022-10-31 Vim Syntax Plugin for Fast Log Entry Log Files
- 2022-10-13 How I do Email
- 2022-08-27 Battery Pack Building
- 2022-07-21 DXPager
- 2022-05-30 First POTA activation
- 2022-05-21 ColorSpot
- 2022-05-21 List of QRP transceivers for portable use
- 2022-01-20 Building an AllStarLink Node
- 2021-12-13 M17 with the TYT MD380 + OpenRTX + Pi-Star + MMDVM
- 2021-11-18 Server Backup with Borgmatic and Borgbase
- 2021-11-12 Hardrock-50 Remote Display
- 2021-08-07 Building the Hardrock-50
- 2021-07-13 qrzlogger
- 2021-06-18 uBitx VFO Knob Mod
- 2021-06-16 uBitx S-Meter Mod
- 2021-06-15 uBitx AGC Mod
- 2021-06-05 Xiegu G1M Stand
- 2021-05-18 uBitx v6
- 2021-05-13 HF Signals Bitx40
- 2021-01-09 ATU-100
- 2020-11-09 qrz.sh - a CLI QRZ.com query tool
- 2020-03-13 Remote Antenna Switch
- 2020-02-02 Shortened 30m Dipole
- 2020-01-17 Xiegu G90 Mods
- 2019-07-05 The AntennaPi
- 2019-01-04 MikroTik: Auto-Backup der Routerkonfiguration auf einen FTP-Server
- 2018-12-31 MikroTik: Zentrales Management von WiFi Access Points mit CAPsMAN
- 2018-12-30 MikroTik: AusfĂĽhren von Skripten per SMS
- 2018-05-03 Dynamic DNS for NSD
- 2018-04-29 Correlation Rule Documentation Generator for McAfee SIEM
- 2016-05-25 Patch for the CLI password manager _pass_
- 2014-12-22 Heated Trackball
- 2014-05-05 NSE-Script: SQLite output for Nmap
- 2013-03-23 Little Helper
- 2012-10-29 The One Button Audiobook Player
- 2011-08-05 The Laundruino