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QSO Buddy: Practice radio conversations interactively
You finally want to speak confidently into the microphone? QSO Buddy is your interactive trainer for amateur radio conversations (QSOs). Learn step by step how a typical radio conversation works – from the CQ call…
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Antennenblick: Interactively Understand Radiation Patterns
Anyone who works with antennas knows the problem: Radiation diagrams in books and online resources are often static, difficult to interpret and only show a single operating case. Antennablick changes that – a new, interactive…
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PrefixPlay: Learn call sign prefixes while playing
If you want to be quick in a contest or simply want to know where a call sign comes from, you have to know prefixes. PrefixPlay makes learning amateur radio call sign prefixes a game.…
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CQ Nothing: Why doesn’t anyone answer?
You call CQ at 20 meters – and there’s… nothing. No answer. CQ Nothing helps you understand why this can happen and how to systematically analyze errors. What is CQ Nothing? CQ Nothing is an…
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First Contact – Learn shortwave propagation through experimentation!
You probably know this: You sit in front of the rig, turn the VFO and ask yourself – why is there nothing going on at 20m while the place is full at 40m? Or why…
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Becoming a radio amateur – Getting started is easier than you think
Have you ever imagined what it would be like to communicate with people all over the world via radio without the Internet? This is exactly what amateur radio makes possible! It opens up a fascinating…
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Becoming a radio amateur – Getting started is easier than you think
Have you ever imagined what it would be like to communicate with people all over the world via radio without the Internet? This is exactly what amateur radio makes possible! It opens up a fascinating…
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What is an SDR? An overview for radio enthusiasts
Software instead of hardware: The SDR principle A Software-Defined Radio (SDR) is a radio receiver in which a large part of the classic hardware is replaced by software. Instead of requiring separate devices for each…
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How far can I really get? Easily create RF propagation maps yourself
Planning radio coverage made easy – with Radio Mobile Online If you want to know how far your signal really reaches, Radio Mobile Online is a really powerful tool. The tool was developed specifically for…
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🏕️ Wavelog – the online logbook for portable radio operation
A flexible logbook that can be accessed at any time is particularly important for portable radio operations (e.g. POTA, SOTA, field days).With Wavelog, a modern, web-based amateur radio logbook is now available on oeradio.at, which…
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Setting up MSI2500 SDR (RSP1 Clone) on Ubuntu – step-by-step instructions
This guide shows how to get an MSI2500 based SDR receiver (like RSP1 Clones) running on Ubuntu Linux with GQRX. The instructions are also suitable for beginners without much Linux experience. What is the MSI2500?…
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Making SDR Accessible Worldwide: A Radio Amateur’s Guide to Cloudflare Tunnels
Or: How I learned to forget port forwarding and love the cloud 🙂 Introduction Dear radio amateurs! Tired of struggling with your router’s port forwarding settings? Annoyed by DynDNS services that give up at the…
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MeshCom: Your entry into a decentralized radio mesh network for radio amateurs
What is MeshCom? – a simple overview MeshCom is an open source project from the Institute of Citizen Science for Space & Wireless Communication (ICSSW), which aims to realize text-based communication via LoRa modules in…
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📱 Use HAMSIP with the iPhone – step by step for beginners
You want to make calls with your iPhone via HAMSIP? Here we will show you how to set up everything – from the VPN connection to the Hamnet to the finished telephony with a SIP…
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Setting up HAMSIP telephony on the PC – step-by-step
This is a follow-up to “HAMSIP Telephony: Our New Toy” and describes how to set up HAMSIP completely on a Windows PC, without a SIP phone and additional network hardware. 1. Request Hamnet access 2.…
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HAMSIP telephony – Our new toy
Some time ago we attended a HAMNET workshop in Vienna and since then we have been playing around with the Internet for radio amateurs. A separate number range on the Internet, starting with 44.xxx.xxx.xxx, is…
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Radio meeting in Maria Rain at the Schmankerl in April
Invitation to the radio meeting in Maria Rain Dear radio friends, The radio friends Klagenfurt Land and Karl, OE8JHK, cordially invite you to a friendly radio meeting. When? Thursday, April 10, 2025, from 6:00 p.m.Where?…
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Powerful radio power supply with Einhell batteries
As an enthusiastic radio amateur, you are always looking for innovative solutions to operate your station efficiently. I asked myself: Why not use the tried and tested Einhell 18V batteries to supply my transceiver with…
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Radio and skiing at the end of the world
The story started with our visits to the radio camp in Döbriach on Lake Millstättersee. The idea was actually to get our son interested in radio engineering. But it infected me with the radio virus.…
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2m SSB Round – Every Wednesday at 8:00 p.m. LT (UTC+1): A highlight thanks to Raimund OE8ANK
Dear radio friends, Thanks to a great idea from Raimund OE8ANK, there is now a new way to liven up the 2m bands and conduct exciting QSOs: the SSB round on 2m. This takes place…
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Broadband receiver with a Quansheng UV-K5 – is that possible?
Michael OE8YML has long been fascinated by Quansheng devices. He was particularly interested in developing a cost-effective broadband receiver. Although there were already various kits on the market, none initially fully met his requirements. The…
