Category: Technology
Meshtastic, MeshCore and MeshCom in the waterfall: reading LoRa with OpenWebRX+
Until recently, finding out whether there is real mesh activity in your valley meant putting up a node and waiting. There is another way now: OpenWebRX+ decodes LoRa packets right in the browser , covering Meshtastic,…
Understanding Baluns and Ununs: Proper Impedance Matching
Few components in a shack are bought as often and understood as rarely as the balun. It is treated as a cure for poor SWR, for interference on the neighbour's television and for RF on the…
Meshtastic in Practice: Off-Grid Messaging with LoRa Mesh
Sending text messages, sharing GPS positions and receiving sensor data, without the internet, without a mobile network, without mains power. And all of it with hardware costing around 35 euros. What sounded like a niche project…
Radio from the eternal ice: Neumayer Station III and DP0GVN
In 2023, 160 pupils from Hermagor worked Antarctica via QO-100. On 20 September, someone who actually lived down there comes to Villach and tells how it really was.
Icom IC-7110: the X-026 concept becomes a production radio
For four months the X-026 was a mock-up without a spec sheet. At the Tokyo Ham Fair Icom finally answered: it is the IC-7110, successor to the IC-7100. What is confirmed, what is missing — and why the 70 MHz on the spec sheet is its own story in Austria.
KiwiSDR: The Global Network of Open HF Receivers
Imagine being able to access a shortwave receiver in New Zealand from your living room, simultaneously open a second one in Japan, and triangulate a signal with a third in Scandinavia — all in your browser,…
Show us your boxes: the repeaters of CarinthiaMesh and the people behind them
Just before midnight on 22 August, a request went out in the Carinthian MeshCore channel: show us your repeaters. What came back is a stock-take in pictures: 37 active sites built from garden lamps, 18650 cells and a fair amount of climbing.
Running OpenWebRX+: Your Own Web-Based SDR Server
Imagine sharing your radio receiver with the entire world — directly through a web browser, without anyone needing to install software. That is exactly what OpenWebRX+ enables: an open-source project that turns a Raspberry Pi and…
SOTAmesh: SOTA spots on the MeshCore network, even without internet
The antenna is up, the phone shows no bars, and the spot never goes out. That is exactly what the new MeshCore channel #sota is for, and SOTAmesh is the web page where chasers can follow it live.
126.9 Kilometres on Half a Watt: How Carinthia's Mesh Network Grew to 32 Sites in Two Weeks
126.9 kilometres from the Koralpe into Slovenia, sent with half a watt. There is no provider and no mandate behind it, just eight people carrying boxes up mountains. A stocktake with numbers, and with what the numbers do not say.
MeshCore: Radio Without a Mobile Network. Now Is the Moment to Join In
There are moments when you can get in on a radio project early enough that your own participation still changes something. With MeshCore , that moment is now. The network is growing, the map still has…
Troposcatter and Rain Scatter – VHF/UHF DX via Atmospheric Scattering
On VHF and UHF, range normally ends at the horizon. But the atmosphere has some tricks up its sleeve that enable radio contacts far beyond line of sight — without the ionosphere, satellites, or the Moon.…
