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Latest Articles
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? The…
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 most…
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 amateur…
📱 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 app.…
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 Go…
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 reserved…
Radio meeting in Maria Rain at the Schmankerl in April
Invitation to the radio meeting in Maria Rain Dear radio friends, The radio friends Klagenfurt Land and Karl, OE8JHK, cordially invite you to a friendly radio meeting. When? Thursday, April 10, 2025, from 6:00 p.m. Where?…
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 maximum…
Radio and skiing at the end of the world
The story started with our visits to the radio camp in Döbriach on Lake Millstättersee. The idea was actually to get our son interested in radio engineering. But it infected me with the radio virus. I…
2m SSB Round – Every Wednesday at 8:00 p.m. LT (UTC+1): A highlight thanks to Raimund OE8ANK
Dear radio friends, Thanks to a great idea from Raimund OE8ANK , there is now a new way to liven up the 2m bands and conduct exciting QSOs: the SSB round on 2m . This takes…
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 turning…
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 of…
