Echoes it's a radio spectral analysis software for RTL-SDR devices,
Echoes it's a radio spectral analysis software for RTL-SDR devices, designed for meteor scattering purposes. RTL-SDR are very cheap Software Defined Radios that uses DVB-T TV tuner dongles based on Realtek's RTL2832U chipset. Echoes doesn't demodulate neither decode any human-made signal. Its main goal is to analyze and record the total power of natural signals and generate screenshots and tabular data (CSV, GNUplot) output in presence of particular peaks in a selected narrow range of frequencies. Since there is no demodulation, there is no provision for audio listening, except for a notify sound when an event has been recorded.
Astronomical freeware for amateur astronomers. This program enable you compute classical ephemeris for each planets, satellites, comets, asteroids and display a 3D simulation of the appearance of the planets.
Small Qt/Qwt program to display an analemma diagram of the sun. This is the curve representing the sun's angular height above the horizon. The program shows one curve per full hour (the real analemma) and one for every first day of a month.
Universe@Home simulates the evolution of galaxies