Patent ID: 6408167
Filing Date: 2002-06-18
Classification: H03J,H04B

Abstract:
A radio device comprising a receiving part formed by at least:a frequency selective stage including at least one amplification stage followed by an anti-resonant frequency selective circuit that can be tuned to a certain frequency band, a level detector, coupled to an output of the frequency selective stage, for measuring the level of an external reference signal, a variation element for causing the frequency band to which the tunable frequency selective circuit is tuned to vary as a function of a control magnitude, said variation element comprising a plurality of reactive elements and a connection network for selectively connecting any one or more of the plurality of reactive elements into the frequency selective circuit in response to the control magnitude, a storage element for storing the control magnitude, and a processor arranged to set the stored control magnitude to that which gives the best level obtained by the level detector.