As I cannot find a better title for this very first release of the SDR# Scytale-C Decoder plugin. The source code will follow in its own repo after I’ll attach all the licensing terms and perform a mandatory cleanup. A few…

I was able today to convert the loop and the VCO filter from transfer functions to filter coefficients. Took some good weeks to get here, nonetheless this is now done and the next step would be to integrate the new…

About half a year a go I found an excellent book on Costas: https://www.springer.com/gp/book/9783319720074. There are three models of Costas loops for BPSK presented in the book, in-detail explanation of the static and dynamic analysis and mathematical models: conventional circuit on…

Things are starting to get shape. The first obstacle was how to get anything out of the SDR#, where to start with the plugin?! Grace to the examples on the SDR# page and thanks to Vasili who kindly shared his source…

This describes a possible multi decoder solution based on: http://aaronscher.com/wireless_com_SDR/RTL_SDR_AM_spectrum_demod.html Identify the frequencies we want to capture. Our LES’ signal has a 4 kHz frequency band and we aim to capture more than one of these frequency bands at the…

This is a rough idea of how I think the extension plugin could look like. The interface follows Scytale-C and the Meteor plugin interface from http://www.rtl-sdr.ru/page/komplekt-plaginov-dlja-priema-sputnikov. The LES is selectable from the Frequency manager (otti’s idea). The displayed frequency is the…

The idea is to code an SDR# plugin decoder for Inmarsat-C. Will see how it goes. IQ input Soft bits Multiple instance, each one running on its own frequency band Each one will have its own settings (many defaulted) Should display…