Primary Data User Station; the name for the equipment used to receive digital data from Meteosat. Analogue images are also transmitted by Meteosat (SDUS - Secondary DUS) but these are of lower quality, resolution and usefulness for scientific applications, and are not received at Dundee.

Primary data user station - typically a large dish with more sophisticated receiving equipment capable of receiving and displaying the high resolution (HRI) data transmissions from Meteosat.

Primary Data User Stations consisting of mainly a ground station and an image processing system.