If you find that you cannot decode the other station's signal well, pressing RX to invert it might sometimes help you decode it successfully. (I didn't understand this at first, and I performed RTTY ...

Hellschreiber is a unique text transmission mode invented by Rudolf Hell in 1929. Instead of encoding text as symbols (like Morse or RTTY), it renders text as a bitmap image and transmits each pixel ...

The FSK demodulator at the core of this application expects the transmitter to behave like a modem. That is, it should: Have a symbol rate which is close to the desired symbol rate (within +/- 1000 ...

What if your compact radio receiver could do more than just tune into signals? What if it could decode, customize, and adapt to your needs, all while fitting in the palm of your hand? Below, Tech ...

73, all hams and radio fans! Once again, Elektor presents a pronounced combination of embedded and radio technology in the form of the ATS25 max-Decoder — a powerful, ultra-compact multimode ...

Low cost (20 €) simulator for weather and warning messages broadcasted by Deutsche Wetterdienst. Used as a tool to develop DWD message receivers and decoders. Support for RTTY and NAVTEX message ...