Abstract

1. Observations of sporadic radio emissions of the Sun at decameter wavelengths
   • Type III bursts and their new decameter features
   • Type II bursts at decameter wavelengths
   • Drifting pairs, s-bursts, etc.
   • New types of decameter bursts
2. Theoretical investigations of the radio emissions of the Sun
   • Propagation of electron beams through the solar corona in nonlinear regime
   • Plasma mechanism of radio emission of the electron beams in the solar corona
3. Radar experiments observations and theory of solar radar echoes
   • James' experiments
   • Principal problems in understanding James' experiments
   • Plasma theory of radar reflection on Type III burst Langmuir and ion-sound turbulence