Category: Technology
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Creating RF Propagation Maps Yourself: From SPLAT! to Radio Mobile
Do you want to know how far your radio signal actually reaches from your location? Whether the new repeater site on the local mountain provides optimal coverage? Or which frequency and antenna height are best…
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HackRF PortaPack: The Portable All-Rounder for SDR Enthusiasts
If you’re into Software Defined Radio, you know the problem: most SDR devices are powerful but need a computer to work. Not so with the HackRF One and its PortaPack extension — a combination that…
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ISS Contact via Amateur Radio: How to Hear the Space Station
Who wouldn’t want to make contact with an astronaut orbiting Earth at 28,000 km/h? The International Space Station ISS makes exactly that possible – and you probably already have the equipment for it in your…
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Understanding Propagation Conditions: SFI, K-Index, A-Index Explained
“What are the conditions like today?” – every amateur radio operator asks themselves this question before going on the bands. The answer lies in a handful of key indicators: SFI, K-Index, A-Index, and sunspot number.…
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CubeSats for Radio Amateurs: Small Satellites, Great Opportunities
A 10 cm cube racing across the sky at 27,000 km/h – and you can transmit through it. CubeSats have democratized amateur radio satellite communication: Where once huge budgets and years of development were necessary,…
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WSPR: The World of Propagation Research with 5 Watts
Imagine sending a signal with less power than a flashlight – and stations around the world receive it. That’s exactly what WSPR (pronounced “Whisper”) makes possible. The Weak Signal Propagation Reporter network is one of…
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ChatGPT, Claude & Co. for Radio Amateurs: AI as Learning Aid and Shack Assistant
Let’s be honest: who among us hasn’t asked ChatGPT how long a half-wave dipole for 20 meters needs to be? Or asked Claude to write an Arduino sketch for a CW keyer? Artificial intelligence has…
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arcOS – The Linux Distribution for Ham Radio
Plug in USB stick, boot, operate. arcOS is a live Linux system with Fldigi, JS8Call, WSJT-X, Winlink, APRS and SDR – built for radio amateurs. Plug & play with Digirig Mobile. Comparison with other ham…
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Memory Channels Processor – Never Type Repeater Data Manually Again
Let’s be honest: who hasn’t spent an entire evening typing repeater data into a new radio? Frequency, offset, CTCSS tone, name… channel by channel. Fifty repeaters later, your eyes are tired, your fingers are stiff,…
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OERadio Meshmap – All Meshtastic Nodes at a Glance
A real-time map for the Meshtastic network in Austria and Europe – open, live, and without tracking. We’ve all been there: your Meshtastic node is running, happily transmitting away – and then you wonder: can…
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OERadio Goes Mesh – The Path to a Dedicated MQTT Server
How we connect Meshtastic nodes via the internet – and how you can join in. Meshtastic is brilliant. Small LoRa nodes that communicate without internet, without a provider, and without monthly costs. Locally via radio,…
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Meshtastic in Carinthia: Three Nodes, a Solar Panel, and Surprising Range
Hello everyone! Hermann here, OE8HSF, from Knappenberg near Hüttenberg – at a good 1,000 metres above sea level. You probably know the feeling: you stumble across a topic on the internet, think “I’ll just have…
