Patent ID: 9032449
Filing Date: 2015-05-12
Classification: H04H

Abstract:
1. A method comprising: receiving a satellite transmission power spectrum including a plurality of signal power distributions transmitted from a respectively plurality of transponders; tuning to an end of said spectrum; setting a slice of said spectrum as a band of tuning frequencies, a bandwidth of said slice being narrower than a bandwidth of one of said plurality of signal power distributions; determining an approximate power value of each one of said slices by measuring a level of AGC signal throughout said spectrum toward an opposite end of said spectrum at a predetermined increment, said AGC signal being used for controlling a gain of an amplifier receiving said spectrum; storing said approximate power value of said each one of said slices in a memory; determining a total value of signal power within said spectrum by aggregating said approximate power value of said each one of said slices; adjusting said AGC level in response to said total value of signal power; determining approximate edges of said signal power distribution transmitted from one of said plurality of transponders for estimating an approximate bandwidth of said power distribution and an approximate center frequency of said signal power distribution from said approximate power value of said each one of said slices stored in said memory; determining an approximate symbol rate of said transponder from said approximate power value of said each one of said slices stored in said memory; and attempting to acquire an available signal in the vicinity of said approximate center frequency.