High-Frequency Radiation -- Active Wave Experiments in Space Plasmas: The Z Mode -- Review of Kilometric Continuum -- Generation of Auroral Kilometric Radiation in Bounded Source Regions -- Generation of Emissions by Fast Particles in Stochastic Media -- Auroral Acceleration and Radiation -- High-Frequency Waves -- The Influence of Plasma Density Irregularities on Whistler-Mode Wave Propagation -- Dipole Measurements of Waves in the Ionosphere -- Mode Conversion Radiation in the Terrestrial Ionosphere and Magnetosphere -- Theoretical Studies of Plasma Wave Coupling: A New Approach -- Plasma Waves Near Reconnection Sites -- High-Frequency Analysis Techniques and Wave Instrumentation -- Tests of Time Evolutions in Deterministic Models, by Random Sampling of Space Plasma Phenomena -- Propagation Analysis of Electromagnetic Waves: Application to Auroral Kilometric Radiation -- Phase Correlation of Electrons and Langmuir Waves.