VOACAP (Voice of America Coverage Analysis Program) is free professional high-frequency (HF) propagation prediction software from NTIA/ITS, originally developed for Voice of America (VOA). In this video we will study the propagation between the time signal station CHU located in Ottawa Canada with a receiver located at VE3PKC in Toronto Canada. The actual received signal… Continue reading VOACAP – CHU to VE3PKC

## Scilab & ScicosLab – Open Source Math for the Spherical Triangle

Scilab and ScicosLab are Open Source Math Programs that can be used in various engineering and scientific applications. In this post I look at how ScicosLab can be used to solve problems with the Spherical Triangle. In Celestial Navigation, problems arise in solving the Plane Triangle and also the Spherical Triangle. Video ScicosLab for the… Continue reading Scilab & ScicosLab – Open Source Math for the Spherical Triangle

## Scilab & ScicosLab – Open Source Math for the Plane Triangle

Scilab and ScicosLab are Open Source Math Programs that can be used in various engineering and scientific applications. In this post I look at how ScicosLab can be used to solve problems with the Plane Triangle. In Celestial Navigation, problems arise in solving the Plane Triangle and also the Spherical Triangle. Video ScicosLab for the… Continue reading Scilab & ScicosLab – Open Source Math for the Plane Triangle

## Scilab & ScicosLab – Open Source Math for CelNav

Scilab and ScicosLab are Open Source Math Programs that can be used in various engineering and scientific applications. I use ScicosLab with the Modnum tool box in all my Telecommunications work, but both Scilab/ScicosLab can be used for all the mathematics involved in my CelNav EBook. The video below is a brief introduction of both… Continue reading Scilab & ScicosLab – Open Source Math for CelNav

## Capella: Reloj en El Cielo

El 23 de julio no pude dormir, algo me dijo que me levantara. Salí al balcón, el cielo estaba despejado y todas las luces de los apartamentos cercanos estaban apagadas. La luna no estaba del todo llena, pero era absolutamente hermosa a unos 128 grados. Entonces, de repente, lo vi solo. Al principio pensé que… Continue reading Capella: Reloj en El Cielo