#wimocreatesknowledge
Si estás pensando en comprar un amplificador lineal (amplificador de potencia), pronto te enfrentarás a la cuestión de si utilizar un amplificador de potencia con válvulas o con transistores. En este artículo, Ekki Plicht, DF4OR, analiza las ventajas e inconvenientes de estas dos tecnologías.
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Noviembre 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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Marzo 17, 2023
¿Cómo ocurre realmente la corrosión y qué se puede hacer para proteger los mástiles...
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Marzo 02, 2023
Ludwig, DH8SL prueba la Delta-11 Loop, junto con un sintonizador de antena LDG RT-100. Aquí está su informe de prueba...
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