From the World Wide WebLiterature reproduced on this site is either public domain or obtained from journals such as IEEE for facilitating access to amateurs and students. Infringement of copyright is not intended. Design R & D - Antenna John D Kraus - Helix Idea, Application for wide band King & Wong - Helix Characteristics, Empirical Design of Helix Simple Helix design, 400 MHz Helix, NASA Jove RT Receiver - Frequencies, Set Top Box, ... Satellite transponder frequencies Frequency Allocation by Indian Govt (Legal constraints) Frequencies (of design) of interest - List of Spectral Lines Tutorials - Radio Astronomy, Antennae, etc RA Basics - NASA, Dale Gary's Course, NRAO Course Antenna basics - Antenna Theory, Ian Purdie's Tutorials - Antenna basics & Radio Telescope Other Amateur Radio Astronomers Society for Amateur Radio Astronomers, David Morgan, Project BAMBI, Amateur Radio Station | Our Work Design Parameter-space (Why we cant have a small beam) Calculating the Specs (designing the Helix) Observations Proof of Concept: Solar Flares - Strong, Medium sized, Cassiopeia A & Tycho, Cygnus A, Tata Sky Timing Beacon Raw Data (Radio SkyPipe files, Needs directory access) Helix - 1.42 GHz, 2.7 GHz, 1.33 GHz Horn - 1.4 GHz Horn Dish & Feed - 11.7 GHz Dish, 11.7 GHz Feed Dipole - 115 MHz Mini-Jove DSP & Calculations (Work in Progress) Fourier Transforms, Deconvolution (MathCAD workouts) - Weiner Method, Hogbom Clean Data stored in .wav can also be processed in MathCAD Software & Tools Radio SkyPipe (chart plotter), Radio Eyes (find radio objects in sky), Winscope (check audio left-right correlation and raw spectrum) |