A ground probing radar (“GPR”) is a device that uses radio waves for the purpose of detecting or obtaining images of buried objects, or determining the physical properties beneath the ground. The emissions from a GPR are intentionally directed down into the ground for this purpose, and systems are designed to operate only when in contact with, or within close proximity to the ground.
Equipment for non-contact level measurement. A licence is required for the use of radar level gauge equipment whose emissions fall within the band 10.6 GHz to 10.7 GHz; other equipment is licence exempt.
Network relay points (NRPs) are used in some networks to connect individual devices together and to connect devices to networks. They aggregate and concentrate data from consumer devices and need to talk and listen to these. The ratio of talk to listen time is referred to as duty cycle. For most NPR devices the duty cycle will likely be below 2.5%, but for higher duty cycles, a licence is required.