Friday, 7 October 2022, 3:53 AM
Site: edulabs.org academy
Course: Activity Examples (Activity Examples)
Glossary: Electronics (Mike Jaroch)
R

RATIO OF TRANSMITTED POWERS

The power ratio (FSK versus AM) that expresses the overall improvement of FSK transmission when compared to AM under rapid-fading and high-noise conditions
[12].

RC CONSTANT

Time constant of a resistor-capacitor circuit; equal in seconds to the resistance value in ohms multiplied by the capacitance value in farads [2] [9].

RC DIFFERENTIATOR

An RC circuit in which the output is taken from the resistor [9].

RC FILTER

A filter used in applications where load current is low and constant, and voltage regulation is not necessary [7].

RC INTEGRATOR

An RC circuit in which the output is taken from the capacitor [9].

RC NETWORK

A circuit containing resistance and capacitance arranged in a particular manner to perform a specific function [9].

RC OSCILLATOR

An oscillator in which the frequency is determined by resistive and capacitive
elements [9].

REACTANCE

The opposition offered to the flow of an alternating current by the inductance,
capacitance, or both, in any circuit [2].

REACTANCE AMPLIFIER

A low-noise amplifier that uses a nonlinear variable reactance as the active
element instead of a variable resistance. Also called a parametric amplifier [11].

REACTANCE TUBE

A tube connected in parallel with the tank circuit of an oscillator. Provides a signal that will either lag or lead the signal produced by the tank [12].