OVERVIEW

Experiments involving small radio telescopes (SRT) that offer students, researchers and amateur radio astronomers a great opportunity to acquaint themselves with techniques used in radio astronomy observation, data acquisition and analysis. Design and construction of low cost and effective antennas and receiver system used in these SRTs with design and functionality that look similar to professional telescopes except that dish size and sensitivity are more restricted. Antenna types include parabolic dish, dipole, Yagi-Uda and pyramidal horn. For the parabolic dishes, we have a fully steerable mesh dish of diameter of 3m used for undergraduate and graduate teaching, three solid dishes of diameter of 2m used as a phased array interferometer to demonstrate the techniques of interferometer, locally made solid dishes of 6m and 10m used for transit observations of nearby radio sources. Other antennas include a locally made Yagi-Uda antenna and pyramidal horn antennas operating at 1420 MHz and both dedicated for 21cm astronomy, a dual-dipole antenna used in the simple low cost CBSS’s Radio Jove Telescope that brings the sounds of Jupiter, Sun and the Milky-way to students, researchers and the general public.

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