1. Variations of the Frequency Range of HF Signals on the Subauroral Path During Magnetic–Ionospheric Disturbances in October 2016

   • V.P. Uryadov
   • F. I. Vybornov
   • A. V. Pershin

   OriginalPaper 27 November 2021 Pages: 77 - 87

2. Development of a Method for Determining the Position of Artificial Ionospheric Irreguliarities Responsible for the Radio-Wave Aspect-Angle Scattering on Short Paths by Oblique Backscatter Sounding Ionograms

   • N. A. Pogorelko
   • E.N. Sergeev
   • E.Yu. Zykov

   OriginalPaper 27 November 2021 Pages: 88 - 100

3. Radiation of Whistler Waves from a Source with a Rotating Near-Zone Magnetic Field in a Magnetoplasma

   • T. M. Zaboronkova
   • A. S. Zaitseva
   • E. V. Bazhilova

   OriginalPaper 27 November 2021 Pages: 101 - 120

4. Flexible Composite Radio-Wave Absorbers

   • S. A. Pozdnyakova
   • A. V. Matveentsev
   • A. A. Rzhevsky

   OriginalPaper 27 November 2021 Pages: 121 - 125

5. Invisible Spherical Objects Made of Isotropic Materials

   • L. S. Dolin

   OriginalPaper 27 November 2021 Pages: 126 - 139

6. Kirkwood and Wigner Quantum Densities, Their Properties, and Applications in Radiophysics

   • M. E. Gorbunov
   • O. A. Koval

   OriginalPaper 27 November 2021 Pages: 140 - 148