Descriptors | Low-temperature testing, Rescue equipment, Performance testing, Drop tests, Antennas, Buoyancy, Radar antennas, Radar equipment, Signal devices, Visual inspection (testing), Built-in, Time measurement, Transponders, Leak tests, Emergency equipment, Environment (working), Signal processing, Battery-powered devices, Radar, Marine signalling devices, Signal strength, Radiocommunication, Marine safety, Testing conditions, Rescue, Signals, Thermal testing, Voltage measurement, Life (durability), Transportation safety, Marking, Portable, Frequency control, Electrical measurement, Working range, Environmental testing, Type testing, Safety devices, Communication equipment, Performance, Sensitivity |