The Physics Behind Radio – Chapter 2 Deutsche Version In the first chapter, we followed the idea of the electromagnetic wave from Faraday’s field lines through Maxwell’s theory to Hertz’s laboratory experiments. That story gave us the central picture: radio is not sound in the air, and it
The Physics Behind Radio – Chapter 1 Deutsche Version A radio receiver is a curious device. It does not collect sound from the air like an ear. It does not listen to pressure waves travelling through the atmosphere. Instead, it responds to invisible changes in electric and magnetic fields. Only after
From Wireless Telegraphy to Software Defined Radio Deutsche Version 1. The Missing Half of Radio History Open almost any book on the history of radio and the pattern quickly becomes apparent. The names are almost exclusively male. Hertz demonstrated electromagnetic waves. Marconi transformed wireless telegraphy into a practical communication system.
The Technical Development of Radio Receivers from the Beginning to the Present Day Deutsche Version 1. The radio receiver as a technical problem A radio receiver is not simply an audio device. Technically, it is a highly selective measurement and signal-processing system. At the antenna input, the wanted signal may
The Schematic Diagram as a Technical Language Deutsche Version Anyone restoring a historic radio receiver does not only read components, wires and tube designations. They also read a technical language. That language is the schematic diagram. To the trained eye, it shows more than the electrical connection of individual components:
A small Radio Document Archive has started on this website. The archive contains historical radio schematics, service information, books, magazines and other technical documents from my private collection. The material is provided for restoration, research and documentation purposes. At the moment, the archive is still under construction. Only a few
The DCF77 Meteotime decoder is now fully working and running live. It receives the DCF77 signal, decodes time and weather data, and displays everything in real time on the website. 👉 Live view available on DCF77
Although most pages are under construction you can send me a message now via the new contact page: ContactGet in touch Questions, feedback or radio-related topics — send me a message here. Send message After submitting, a confirmation page will open.OE6VAGAlbert Zrim
The OE6VAG station page now aggregates several live data sources: • ADS-B aircraft reception (ADS-B Exchange feed) • APRS position and packets (via APRS.fi) • Latest QSOs from the QRZ logbook • Radiosonde tracking • TinyGS station page Most of these integrate nicely via APIs or embeds. TinyGS, however, seems to play a bit