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Kernel kalm, Kernel panik

Electronics & RF

by @OE3TEC · 25th May 24
Server power supplies can often provide a very high current at their 12V output therefore they are very attractive as power sources for amateur radio use. As these are switching mode supplies it is possible that they cause interference on some bands. Neve
by @OE3TEC · 3rd May 23
Info: Our club station now has its own website: OE3XHU.AT Info: Sometimes the WebSDR is not available but will be restarted in about 24h after I got informed. Since a few months now we are hosting a WebSDR from our ham radio club station in the STH Holl
by @OE3TEC · 20th Apr 23
The SA868 and similar modules from NiceRF have a quite long delay between pressing PTT and the transmitted audio actually coming "on". Some online sources say that this delay is about 700ms which is much to long for many applications. I wanted t
by @OE3TEC · 11th May 22
I recently bought this Bluetooth audio module from Amazon (also available for a lower price on Aliexpress). The cool feature of it is that it can pass through audio. It has an aux input where another analog audio source can be connected. A relay automat
by @OE3TEC · 8th Sep 21
Warning: Since this article got so many views, I have to inform you that modifying your radio to transmit with higher power or out of the CB-band is illegal if you are not a ham. In addition: Warranty void Info: This article is regularly updated with new
by @OE3TEC · 16th Aug 21
Recently I bought a Motorola GM900 2m band radio on ebay for little money. I planned to mount this old 16 channel radio in my car for communicating on our local repeaters and simplex frequencies. The max output of 25 Watts should be more than enough for t

Software Dev

by @PreyMa · 14th Sep 21
In the latest episode of our endeavor to create a Brainfuck meta-compiler we got a first working version and learned about some interesting behaviors of the v8 JIT optimizer. When leaving off, I mentioned that there are still many opportunities left to im
by @PreyMa · 8th Sep 21
This article is a guide on how to set up a simple network-attached storage (NAS) computer based on a Raspberry Pi and external hard drives connected via USB. To follow along basic understanding of how to install and use a Linux OS is required, but to get
by @PreyMa · 6th Sep 21
If you had to describe what a programming language looks like really precisely to someone lacking any ability of independent thought, someone struggling to understand basic natural language, suffering from the complete inability to make any kind of useful
by @PreyMa · 8th Jul 21
When I first started learning JavaScript by following along with “The Coding Train” on YouTube (formerly Daniel Shiffman) one of the first things I did was to download a text editor with a cool looking dark theme. Up to this point, the only things I use
by @PreyMa · 29th Jan 21
Have you ever looked at Google's “Did you mean” field and wondered about the magical sorcery their servers use to interpret some kind of sensible meaning from your auto correct gibberish? Well, at least I have, but sorry to disappoint you I have got not a
by @OE3TEC · 21st May 21
I needed to compile the firmware for the HackRF One because I wanted to use a 26MHz TCXO as external clock instead of the standard 10 MHz clock. While doing so I encountered a problem with YAML. It was installed but "make" returned "No modu

Blog

by @PreyMa · 8th Sep 21
My first computer was a PC built from parts thrown out by my dad’s workplace. It was an old tower PC running Windows 2000. Over the years we added parts and replaced others until I bought an Intel Pentium G2020 dual-core at some point making my PC the fas
by @OE3TEC · 17th Jan 24
changpuak.ch: Antenna and filter calculators classeradio.com: Class E AM Transmitter Descriptions, Circuits, Etc. VK1SV: Class-E for beginners dmitrynizh.com: Create Spice Models for tubes b-kainka.de: Electronic projects funknetzplanung.com: RF-Cal
by @OE3TEC · 19th Sep 23
Ausschlaggebend für diese Stellungnahme: Gebührenverordnung in Begutachtung Beilage 1 Beilage 2 Beilage 3 Per E-Mail an "e-recht(at)bmf.gv.at" am 18. September 2023 Sehr geehrte Damen und Herren, Mit Bedauern musste ich feststellen, dass in der in Begu
by @OE3TEC · 19th Sep 23
I recently bought a Chinese Diesel heater to heat my green house during cold spring nights. Here I will share some important tricks and precautions I found while using the device. The tomatoes like it 😄 You can reduce your Diesel consumption by mixing
by @OE3TEC · 2nd Mar 23
I repared this generator and didn't find the manual on the web therefore I will provide it here .
by @OE3TEC · 1st May 21
As a wise teacher once said: Only Vector Graphics don't give me eye cancer. Lock at that quality! This is really for testing vector graphics on this website.