- IMPROVEMENT OF THE RADIOMETER USED FOR THE OBSERVATION OF SOLAR NOISE AT 8 CM : HIGH FREQUENCY PART
A new i-f amplifier of bandwidth 10 MC and a new balanced converter of improved reliability have been substituted for those used before，since 15th，Aug.，1952. The centre frequency of i-f amplifier is 60 MC and good balance is kept at the frequency converter in the range of 3750土60 MC. The fluctuation on the final record is about 1°K in RMS value. It has become clear that there are cases where appreciable fluctuations appear during enhanced solar radiations.
空電研究所報告 3 (1-2), 62-65, 1953-03-25