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amplifier amplitude analysis antenna approximation assume attenuation bandwidth calculated capacitance capacitor channel characteristic chrominance circuit of Fig coefficient color communication component considered constant correlation corresponding curves determined deviation diode distortion distribution duration electrical electronic Elektrosvyaz elements equal equation equivalent error experimental expression factor feedback filter fluctuation formula frequency divider function given harmonic impedance increase input signal integral linear logical condition loop magnetic maximum measurement method modulation multivibrator neper noise immunity nonlinear obtained operation optimum oscillator output voltage parameters phase shift polynomial probability problem pulse radiation RADIO ENGINEERING Radiotekhnika random receiver reception reflection coefficient resistance resonant circuit route shown in Fig signal-to-noise ratio Sovetskoye Radio stability stage switching synchronization telegraphy television Theory tion transformation transistor transmission transmitted triode tube tuned circuit tunnel diode variation voltage wave waveguide zero