Category: Technology
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Emergency power supply with discarded batteries
For our project “2nd Life for GEL batteries” we converted two 140Ah GEL batteries from a UPS system. These batteries, which had to be replaced due to their age, should be given a second chance at the Shack. Our procedure is explained step by step here. The start: voltage test and charging process After collection,…
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Track air traffic live: SDRangel & RTL-SDR as ADS-B receivers
At the flea market in Vienna Aderklaa, in addition to the sale of used goods, there was also an interesting conversation with the radio amateur OE3LCR. He explained how to receive aircraft data inexpensively using simple equipment. After this conversation I found a suitable video from Arthur DL2ART (channel “Funkwelle”), which confirms that reception is…
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Experiments with self-sufficient power supply for our radio station
After repowering our roof PV system after 10 years of operation, a few older PV modules remained that are ideal for experiments and craft projects, such as the emergency power supply for our radio systems. The bottleneck for us is now simply the space on the roof or other suitable areas where you can mount…
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Common Mode Current Indicator for Shortwave
This project article describes step by step the construction of a sheath wave indicator that shows directly on the coaxial cable whether sheath waves are being generated. When sheath waves occur, an LED lights up. The idea for this project originally came from Heinz, DL8MH, who presented it in one of his YouTube videos. This…
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New tools on our website
We are pleased to introduce you to a number of useful tools and calculators on our website! These new features are specifically designed for radio amateurs and help to perform calculations, understand radio conditions and obtain live data for radio operations. An exciting update for anyone who wants to improve their radio practice or gain…
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Turn old into new – recycle batteries and use them for radio activities
Recycling is worth it! Our amateur radio club Spittal Drau has impressively proven this. At the beginning of this year, one of our members received a special gift basket from a radio amateur friend from OE7 / Tyrol – it contained dismantled battery blocks. They immediately went to work to discover the potential of these…
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Project: Frank-N-Stein radio devices USB charger
Sometimes you are faced with the problem that a radio has lost its charger or is defective. The “Frank-N-Stein” project created exactly such a case. An old radio without a charger was equipped with a 2S 1A Type C charger board, which can now charge the battery via USB-C. With a maximum charging power of…
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Voice Bot via Digital Modes: The Future of Radio?
In a groundbreaking development, amateur radio operator Michael DC9VQ has made Nunu NARSPT‘s DMRBot available to the general public made. This exciting news was successfully tested using the Dobratsch repeater (OE8XFK). But what exactly makes this bot so remarkable? The DMRBot allows radio amateurs to ask questions via a specific talk group and receive answers…