Galactic temperature at 408 MHz

Brief description

Use a yagi antenna, pointing at the zenith, to determine the brightness temperature of the Galaxy at 408 MHz. This experiment can be carried out in the daytime. Power from the antenna is detected in a radio receiver (ICOM IC-R7100) and recorded on computer or on a chart recorder. Power variations over the day are calibrated from a `cold load' (resistor in liquid nitrogen) to determine the absolute power received. The equipment will enable you to make a drift scan of the Galaxy and reenact the observations that were the birth of radio astronomy.

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