Field strengths of 164 kHz radio-waves received at Ahmedabad from Tashkent in 1960-65 and effect of solar X-ray emissions

Abstract

The paper summarises the results of observations on the field strength of 164 kHz radio-waves received at Ahmedabad from Tashkent during the period 1960-65. There is a general increase in field strength with decrease in solar activity. From the end of 1965 when we began to receive X-ray data from N.R.L. satellites, it has been noticed that increases in the intensity of 0-8 Å at satellite level, are associated with daytime decreases in the field strength of 164 kHz waves received at Ahmedabad. As may be expected, the enhancement of 0-8 Å X-rays is also associated in a general way with an increased emission from the sun of 10.7 cm. radio-waves. Examples are given.