Patent ID: 8437384

Claim:
An improved mobile communications device of the type having a set of antennas, and a narrowband RF transceiver coupled to a first member of the set of antennas, wherein the improvement comprises: a broadband amplitude-shift-key receiver, coupled to a second member of the set of antennas, to produce a digital signal; and processing circuitry, coupled to the narrowband RF transceiver and the broadband amplitude-shift-key receiver, that processes the digital signal to: determine a communications channel for the narrowband RF transceiver; set a frequency of the narrowband RF transceiver to correspond to the determined communications channel; monitor the narrowband RF transceiver and the broadband amplitude-shift-key receiver in parallel for received information relevant to operation of the narrowband RF transceiver; and determine a communications channel for the narrowband RF transceiver and to set a frequency of the narrowband RF transceiver based on information received from the broadband amplitude-shift-key RF receiver when relevant information is received from the broadband amplitude-shift-key RF receiver before relevant information is received from the narrowband RF transceiver.