// ORBITAL LOGISTICS AND PROPULSION TERM
Spectrum
The range of electromagnetic frequencies used for communication, including radio waves, microwaves, and light, which are essential for satellite operations.
TECHNICAL DEFINITION
Spectrum refers to the range of electromagnetic frequencies allocated for various communication purposes, including satellite uplinks, downlinks, and inter-satellite links, which is a finite and regulated resource critical for data transmission, telemetry, and command & control in space operations.
BACKGROUND
Outer space, or simply space, is the expanse that exists beyond Earth's atmosphere and between celestial bodies. It contains ultra-low levels of particle densities, constituting a near-perfect vacuum of predominantly hydrogen and helium plasma, permeated by electromagnetic radiation, cosmic rays, neutrinos, magnetic fields and dust. The baseline temperature of outer space, as set by the background radiation from the Big Bang, is 2.7 kelvins.
READ MORE ON WIKIPEDIASYNONYMS & ALIASES
- Radio spectrum
- frequency band
- electromagnetic spectrum
- bandwidth
USAGE NOTE
Access to specific spectrum frequencies is highly regulated and crucial for satellite operators.
DEVELOPERS
Organizations developing technology related to Spectrum.
A global communications company that designs and operates a constellation of high-capacity geostationary satellites, primarily using the Ka-band spectrum to provide high-speed satellite broadband services.
Develops flat-panel, software-defined, electronically steered satellite antennas. Their metamaterials-based technology allows for seamless and dynamic communication with satellites on moving platforms.
Designs and manufactures scalable, software-defined active phased array communication payloads for satellites and airborne platforms, enabling dynamic beamforming and advanced spectrum utilization.
A manufacturer of laser communication terminals for airborne and spaceborne applications. Their technology enables high-data-rate communication by using light, bypassing the congested radio frequency spectrum.
Provides solutions for satellite command and control, network management, and RF monitoring. The company develops systems that monitor spectrum usage in real-time to identify interference and ensure communication integrity.
A major aerospace and defense contractor that develops advanced radio frequency communication systems, electronic warfare technology, and space payloads. They specialize in secure, resilient communications and spectrum management solutions.
A specialized agency of the United Nations responsible for coordinating the global shared use of the radio spectrum, assigning satellite orbits, and developing the technical standards that ensure networks and technologies seamlessly interconnect.
Develops simulation software used extensively in the aerospace industry. Their STK (Systems Tool Kit) and RF simulation tools help engineers design and analyze complex satellite constellations, model RF link budgets, and predict spectrum interference.