Patent ID: 8548407

Claim:
An antenna assembly comprising: a single cable configured to define an antenna end of the cable and a receiver end of the cable, and allow propagation of signals therebetween; a first antenna configured to couple a first received signal to the antenna end, said first received signal characterized as being centered about a received center frequency and being modulated with data; a mixer configured to mix a second received signal with a local oscillator signal to provide an intermediate signal, said second received signal also characterized as being centered about said received center frequency and being modulated with data, said intermediate signal characterized as being centered about an intermediate center frequency distinct from said received center frequency and being modulated with data from the second received signal, said mixer further configured to couple the intermediate signal to the antenna end; a second antenna configured to couple the second received signal to the mixer, whereby the first received signal and the intermediate signal are superimposed on the single cable and propagate to the receiver end; and an adjustable local oscillator configured to detect a control signal originating from the receiver end and output the local oscillator signal having a local oscillator frequency dependent upon the control signal.