Category: Technology
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MeshCom 4.0 Off-Grid – Is That Even Possible?
Since my QTH is in a hollow surrounded by hills, connecting to other nodes just isn’t possible from here. And let’s be honest: hanging a node directly on the internet is basically WhatsApp with an…
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Cloud Logging 2026: Online Logbooks for Ham Radio Compared
The paper logbook has had its day — but where should your QSOs go? The answer increasingly is: the cloud. Online logbooks offer automatic QSL confirmations, real-time statistics, award tracking, and access from anywhere. But…
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Vertical Antennas for HF: Fundamentals, Types and Practice
If you want to work DX and have limited space, a vertical antenna is hard to beat. Thanks to their low radiation angle, verticals send their signal flat over the horizon — exactly where the…
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Magnetic Loop: The Balcony Antenna for Radio Amateurs
If you live in a rented flat or apartment, you know the problem: a Yagi on the roof? Not a chance. A dipole in the garden? What garden? For many radio amateurs in urban areas,…
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3D Printing for Ham Radio: Projects, Materials and Tips
When you need a special enclosure for ham radio, an antenna mount in an unusual shape, or a part that simply isn’t available to buy — reach for the 3D printer. The combination of amateur…
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Numbers Stations: The Mysterious Voices of Shortwave
Imagine this: late at night, you’re turning the VFO on your shortwave receiver. Somewhere on 4625 kHz the dial sticks — a monotonous buzzing, about 25 times per minute. You think it’s interference. Then suddenly:…
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xOTA Map: 34 Outdoor Programs on One Map — with Spots and Field Logging
If you operate outdoors, you know the drill: SOTA has one map, POTA another, WWFF yet another. Spots are scattered, rules are everywhere. The idea came up during the Dobratschrunde — a regular on-air roundtable:…
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MeshCom vs. Meshtastic: LoRa Mesh Networks for Radio Amateurs
Text messages without the internet, without mobile networks, without infrastructure — simply device-to-device across kilometres? What sounds like science fiction has long been reality with LoRa mesh networks. Two projects dominate the scene: Meshtastic, the…
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Yaesu FT-290R: 2.5 Watts of Pure Addiction
There are radios you buy. And there are radios that find you. My Yaesu FT-290R belongs to the second category. I was scrolling through willhaben (Austria’s Craigslist) one evening, no plan, just browsing, and there…
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RTL-SDR for Beginners: Discover the World of Radio for 30 Euros
Track aircraft, receive weather satellite images, listen to amateur radio, monitor ships on the Danube — all with a USB stick costing around 30 euros? Welcome to the world of Software Defined Radio. The RTL-SDR…
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HAMNET in Austria: The Data Network for Radio Amateurs
What if radio amateurs had their own data network — independent of the internet, independent of commercial providers, operating on amateur radio frequencies with data rates of up to 200 Mbit/s on backbone links? That’s…
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PMR vs. Meshtastic vs. CB Radio: Three Licence-Free Radio Systems Compared
3 January 2026, Berlin-Lichterfelde: an arson attack on the power grid knocked out 45,000 households – for days. Mobile phone towers went down, landlines dead, internet gone. Thousands of people were left with no way…
