Patent ID: 8045925
Filing Date: 2011-10-25
Classification: H03G,H04B

Abstract:
1. An intermediate frequency (IF) signal loss compensation circuit for an outdoor unit of a network communication system, comprising: a sending circuit connected to an antenna of the network communication system, wherein the sending circuit is connected to the indoor unit of the network communication system through a cable and receives an IF signal from an indoor unit through the cable; a receiving circuit connected to the antenna of the network communication system, wherein the receiving circuit is connected to the indoor unit of the network communication system through the cable; a detection circuit detecting the IF signal received by the sending circuit in substantially real-time; and a control circuit determining signal loss in the cable by comparing the IF signal detected by the detection circuit with a pre-stored signal corresponding to the IF signal, and compensates the signal loss in the cable in substantially real-time by varying gain amplifications of the sending circuit and the receiving circuit according to the determined signal loss in the cable.