PPDR (Public Protection and Disaster Relief) equipment manufacturers and users want to use part of the 700 MHz band to deploy dedicated PPDR networks in order to benefit from the LTE technology developed in the same band.
They also want to use the 450 - 470 MHz band for PPDR as an additional spectrum resource suitable for large area coverage. The two contemplated bands being immediately adjacent to DTT, this creates compatibility issues. This fact sheet describes these issues and the conditions set up to deal with them in Europe.