oeradio.at – Amateur Radio in Austria
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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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EFHW: The End-Fed Half-Wave Antenna — simple, effective, versatile
Few antennas have received as much attention in recent years as the EFHW — the End-Fed Half-Wave antenna. Whether for SOTA activations on Austria’s mountain peaks, POTA in national parks, or as a discreet garden…
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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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New: RSS Feed for oeradio.at – Never Miss an Update\!
We’re excited to introduce a new feature: You can now subscribe to all oeradio.at articles via RSS feed – without cookies, tracking, or social media algorithms! What is RSS and Why Should I Use It?…
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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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DX Weather CW 11/2026
Period: 14.03.2026 – 20.03.2026 · Calendar Week: 11/2026 · SFI: 108 · SSN: 45 · A: 15 · K: 3 · X-Ray: B5.2 Dear fellow operators, CW 11 was a week of contrasts – a…
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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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TOTA – Towers On The Air: Climb the Tower and Call CQ!
Guest article by Josef | OE3FJS Be honest: Have you ever climbed an observation tower, reached the top, enjoyed the stunning panoramic view – and thought: “Man, I really should call CQ from up here!”?…
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Amateur Radio as a Hobby: What to Expect and What Does It Cost to Get Started?
Die kürzlich durchgeführten POTA-Aktivierungen von Michael OE8YML auf den Standorten AT-0112 Schütt – Graschelitzen und AT-0016 Dobratsch waren ein voller Erfolg. Michael konnte beide Parks mittels SSB auf Kurzwelle aktivieren und hat damit wieder einmal…
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DXCC, WAZ, WPX: The Major Amateur Radio Awards Explained
Introduction: The Fever for the Certificate You just made your first DX QSO on 20 meters — Japan, with only 100 watts and a wire in the garden. Your heart is still pounding. You checked…
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Contests for Beginners: Why You Should Enter at Least One Contest
Introduction You’re sitting in the shack, turning the VFO, and suddenly on 14 MHz you hear a tangle of callsigns, lightning-fast exchanges, and cryptic numbers. “CQ Contest, CQ Contest, OE2S, Oscar Echo Two Sierra.” Then…
