IEC 61338-2:2004-05(en-fr) contains guidelines for use, is limited to the waveguide type dielectric resonators that are used for oscillator and filter applications. The applications are oscillators for direct broadcasting or communication satellite systems, oscillators for radio links, voltage-controlled oscillators for mobile communication systems and so on. This standard cancels and replaces IEC PAS 61338-2 published in 2000. This first edition constitutes a technical revision.