Patent ID: 6992990
Filing Date: 2006-01-31
Classification: H03C,H03D,H04B,H04L

Abstract:
1. Apparatus for communicating by radio, comprising: (a) a baseband processor for modulating data to be transmitted into an intermediate frequency signal; (b) the baseband processor demodulating an intermediate frequency signal derived from a received high frequency signal; (c) a front end section for receiving the intermediate frequency signal from said baseband processor and converting the received intermediate frequency signal into a high frequency signal; (d) the front end section transmitting the high frequency signal; (e) the front end section receiving a high frequency signal from a remote location and converting the received high frequency signal into an intermediate frequency signal; (f) the front end section supplying the converted intermediate frequency signal to said baseband processor; (g) said front end section being tunable to different frequency channels in each of a plurality of frequency bands for use as a radio frequency channel within a selected one of the frequency bands; and (h) a frequency change-over selector for selecting a frequency channel in a frequency band to transmit and receive said data to avoid disturbance that may be present on an initially selected frequency channel.