The HIFI instrument is the result of many years of work by a large group of dedicated people. It is their efforts that have made it possible to create such a powerful heterodyne instrument for use in the Herschel Space Observatory. We would first like to acknowledge their work.

The manual itself included help and inputs from a number of people. Particular help and contributions to this manual have come from the calibration group and recent in-orbit calibration updates they have provided. In particular, the following people have made significant contributions