Calibrating a filter in a receiver for high RSS and low third order intermodulation product

摘要

A method for calibrating a radio receiver (10) includes the steps of calibrating the crystal filter (6) in order to maximise a Receiver Signal Strength (RSS) level and calibrating the crystal filter 6 to minimise a third order intermodulation product received by the radio receiver (10). A receiver (10) is also described provided with a means (13) to generate the third order intermodulation product signal and to calibrate the crystal filter (6).