Patent ID: 7564928

Claim:
A system for tuning at least one incoming signal, said system comprising: a local oscillator generating a local oscillator signal; a divider-shifter coupled to said local oscillator and receiving said local oscillator signal to generate at least one fractional signal; at least one downconverter coupled to said divider-shifter and receiving said at least one fractional signal; an incoming signal comprising a first incoming signal frequency band and a second incoming signal frequency band coupled to said at least one downconverter; wherein said divider-shifter divides the local oscillator signal by a first number when said first incoming signal frequency band is selected and divides the local oscillator signal by a second number when said second incoming signal frequency band is selected, wherein the first number is essentially half the second number; and wherein said at least one fractional signal is used to tune said selected incoming signal frequency band, thereby reducing interference between said at least one downconverter and said local oscillator.