Category: Technology
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Relaisblick – Interactive map of all Austrian amateur radio relays
With Relaisblick we present a new interactive web application that shows all amateur radio relays in Austria on a clear map. The tool was developed by OE8YML and is available as an open source project…
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OERadio MCP Server – Amateur radio tools for AI assistants
The oeradio.at MCP Server gives Claude, ChatGPT and Gemini direct access to 11 amateur radio tools – from band plans to dipole, coax, EIRP and battery calculators. Open source, ready to use, works with any…
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Akkublick – battery planning for radio amateurs
Battery view – battery planning for radio amateurs Akkublick is a battery planning tool for radio amateurs. The tool helps you calculate the optimal battery capacity for your portable radio operation and ensure that you…
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Strahlblick – HF Safety Calculator
Rahlblick – HF safety calculator Strahlblick is an RF field strength and safety distance calculator according to ICNIRP guidelines. The tool helps radio amateurs to calculate the electromagnetic field exposure of their antenna system and…
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MorseFleet: Learn Morse code while sinking ships
Learn Morse code in a playful way – while sinking ships! MorseFleet combines the classic ship-sinking game with Morse code training. Instead of simply typing in coordinates, you enter them using a Morse key (or…
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Kabelblick – coaxial cable attenuation calculator
Calculate the signal loss of your coaxial cables With Kabelblick you can quickly and easily calculate the attenuation of your coaxial cable at any frequency. No matter whether you work on shortwave, VHF, UHF or…
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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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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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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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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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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…
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HackRF Portapack Maymem H4M
The discovery I am constantly looking for interesting devices, kits, etc. During my online research I came across the PortaPack Mayhem MH4 – a promising SDR system for technology enthusiasts. After ordering, a waiting period…
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Emergency power supply with discarded batteries
For our project “2nd Life for GEL batteries” we converted two 140Ah GEL batteries from a UPS system. These batteries, which had to be replaced due to their age, should be given a second chance…
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Track air traffic live: SDRangel & RTL-SDR as ADS-B receivers
At the flea market in Vienna Aderklaa, in addition to the sale of used goods, there was also an interesting conversation with the radio amateur OE3LCR. He explained how to receive aircraft data inexpensively using…
