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Spectral Efficiency Spectral Efficiency is the amount of useful information transmitted per unit of spectrum, usually expressed as bits per second per hertz. It measures how effectively spectrum is converted into usable… Concept/Framework Spectrum Spectrum is the range of electromagnetic frequencies used for communication, sensing, and other radio-related functions. It is the underlying resource for wireless systems. Concept/Framework Spectrum Coordination Spectrum Coordination is the planning and management of radio spectrum use to reduce interference and allow compatible services to operate. It aligns technical and regulatory use of frequency resources. Operations Spot Beam Spot Beam is a narrow, focused satellite or radio beam that concentrates energy on a limited geographic area. It provides localized coverage with higher directional gain. Hardware Subnet Mask Subnet Mask is a bitmask used to separate the network and host portions of an IP address in IPv4 and similar address structures. It defines the subnet boundary. Protocol System Noise Temperature System Noise Temperature is a measure of the total noise contribution of a receiver system expressed as an equivalent temperature. Hardware Tactical Terminal Tactical Terminal is a communications terminal designed for use in operational or field-deployed tactical environments. It supports tactical communications and connectivity through portable, resilient endpoints. Hardware Telemetry Stream Telemetry Stream is a continuous flow of telemetry data from a device, system, or remote asset to a monitoring or control destination. Software Three Axis Stabilized Antenna Three Axis Stabilized Antenna is an antenna system that maintains pointing in roll, pitch, and yaw using active stabilization control. It keeps the antenna aligned despite platform motion by sensing… Hardware Time Synchronization Time Synchronization is the process of aligning the time values used by devices or systems so events can be ordered and coordinated consistently. Operations