The RPG-DP-SR instrument is a modular dual polarisation (DP) radiometer system for surface observations. It can be used in a wide field of applications, where polarisation effects are significant:

• soil moisture
• ocean salinity
• surface snow
• emissivity measurements

It is a stand-alone system for automated weather-station use under nearly all environmental conditions.This instrument observes 3 or 4 frequencies with 2 orthogonal polarisations (6 or 8 channels in total). The available receiver modules cover the following: