TY JOUR TI Ensuring Electromagnetic Compatibility of Reactive-Power Compensation Devices in Train Hectometre-Wave Radio Channels KW Electromagnetic compatibility KW train hectormetre radio communication KW electromagnetic interference on Russian Railways lines KW refinement of the reactive-power compensation device filter with smooth control KW frequency analysis JO Bulletin of scientific research results AU Agunov, A.V. AU Karabanov, A.A. AU Abdulhakov, I.Y. AU Sargsyan, K.M. PY 2025 IS 2025 PB FSBEI HE "Emperor Alexander I St. Petersburg State Transport University"