#wimocreatesknowledge
If you are planning to purchase a power amplifier (transmitter amplifier), you will soon be faced with the question of whether to use a PA with tubes or transistors. In this article, Ekki Plicht, DF4OR, looks at the advantages and disadvantages of these two technologies.
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November 13, 2023 |
It is worthwhile not only for radio amateurs, but also times with the whole family to observe such shooting star showers optically. To do this, you should look for a place in the region that is as dark as possible. Unfortunately, the light pollution in densely populated areas is enormous, so it is difficult to find a place that is sufficiently dark. Helpful are maps on the Internet, which show the degree of light pollution, e.g. https://www.lightpollutionmap.info oder https://darksitefinder.com/. Or ask the local astronomy group, where they go for observation... No matter if you look at the shooting stars, listen to them or use them actively as reflectors - we wish you a lot of fun and "Clear Skies".
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March 16, 2023
How does corrosion actually occur and what can be done to protect the masts...
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March 02, 2023
Ludwig, DH8SL is testing the Delta-11 Loop, along with an LDG RT-100 antenna tuner. Here is his test report...
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September 08, 2022 |
What is radiopropagation forecast? What is its significance for amateur radio? Where can I get information?
Read here the most important things about radiopropagation forecast - with many helpful links...