... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Visiting Parkes radio telescope . ... Parkes radio telescope webcam . ... Technical aspects of the new AAO/UKST H interference filter . ... Specification of a narrow-band interference filter mounted at the telescope focal surface is complicated by environmental and optical considerations which have implications for the chosen filter design. ...