Spectrum of the Galactic Radio Emission between 10 Mc/s and 1.5 Mc/s

Abstract

As part of a general investigation of cosmic radio noise at frequencies less than 10 Mc/s the intensity of the radiation has been measured at 9.8 Mc/s, 4.8 Mc/s, 2.3 Mc/s and 1.5 Mc/s. The observations were made at Hobart during July and August in 1961 and 1962. Similar arrays of three full-wave dipoles were used at each frequency, directed to declination − 42°. The bandwidth of the receivers was 4 kc/s and a combination of frequency sweeping and minimum recording was used to reduce interference from transmitting stations and atmospherics. The receivers were calibrated with noise generators.