This part of IEC 62575 gives practical guidance on the use of RF BAW filters which are used in telecommunications@ measuring equipment@ radar systems and consumer products. General information@ standard values and test conditions will be provided in a future IEC standard1. This part of IEC 62575 includes various kinds of filter configurations@ of which the operating frequency range is from approximately 500 MHz to 10 GHz and the relative bandwidth is about 1 % to 5 % of the centre frequency. 1 This standard (under consideration) is expected to bear the reference number IEC 62575-1.