I believe that the Biomass satellite, just approved by ESA and slated for a 2020 launch, is a Synthetic Aperture Radar satellite that will operate 432-438 MHz.

As I recall 432-438 MHz was allocated to these broadband radar satellites about a decade ago.

BBC News - Esa approves Biomass satellite to monitor Earth's forests http://www.bbc.co.uk/news/science-environment-22435656

73 Trevor M5AKA