Noise reduction and range control radio system

摘要

A radio back-end circuit that includes an integrator and a first variable voltage translator having a signal input coupled to the output of the integrator circuit. Also included is a first variable low pass filter, a second variable voltage translator, and a variable attenuator. These components of the radio back-end circuit are communicatively coupled such that noise is reduced in radio communications and signal and reception range control is improved in certain situations.