Non-Geostationary Satellite Orbit (NGSO)
ETL Systems supports a wide range of satellite communications ground infrastructure, including the rapidly expanding Non-Geostationary Satellite Orbit (NGSO) segment.
NGSO encompasses Low Earth Orbit (LEO), Medium Earth Orbit (MEO), and Highly Elliptical Orbit (HEO) missions. Growth in this sector has accelerated with the rise of LEO operators such as SpaceX Starlink, OneWeb, Planet Labs, Airbus SE and others, who are delivering low-latency, high-speed connectivity to some of the most remote and underserved regions on the planet.
Each NGSO architecture relies on ground-based teleports to link the constellation with terrestrial networks. These facilities form the gateway between space and Earth, routing vast volumes of data to and from end users. Designed to handle dynamic tracking, rapid handovers and wide operating bandwidths, NGSO teleports must support a broad range of RF frequencies – including the Ku- and Ka-band channels commonly used for high-data-rate LEO services.
ETL Systems provides a comprehensive portfolio of RF technologies to meet these demands, including high-performance switch matrices, agile and fixed frequency converters (BUCs, LNBs and converter variants), solid-state and TWT amplifiers, and RF over Fibre solutions. These products are engineered to maintain signal integrity, support redundancy architectures and deliver reliable operation within fast-moving, high-throughput NGSO environments.
Featured products
Deployed in deep space gateways around the world
HUR-10
HURRICANE 64x64 distributive matrix
850-2450MHz extended L-band range, ultra-configurable model
HWK-G1S-15-F44
HAWK 4x4 FIFO matrix module
500-3150MHz extended L-band range, with unity gain
HWK-G1S-15-D44
HAWK 4x4 distributive matrix module
500-3150MHz extended L-band range, with unity gain
VTRC-102-XXXX-1616
VICTOR 16x16 combining matrix
850-2450MHz extended L-band range, with variable gain/RF detection
VTRC-100-XXXX-2408
VICTOR 24x8 combining matrix
850-2450MHz extended L-band range, with variable gain
NGSO networks
- Significant volume of gateway antenna sites required to support the frequent satellite handover (every 15-20 minutes in the case of LEO satellites).
- Complexity of architecture and ground system technology required for tracking multiple satellites.
- Smaller antennas and gateways typically require more compact sub-systems.
- High frequency bands in the RF spectrum are becoming increasingly congested; satellite operators seek to utilise different frequency bands in different jurisdictions around the world.
- Significant volume of gateway antenna sites required to support the frequent satellite handover (every 15-20 minutes in the case of LEO satellites).
- Complexity of architecture and ground system technology required for tracking multiple satellites.
- Smaller antennas and gateways typically require more compact sub-systems.
- High frequency bands in the RF spectrum are becoming increasingly congested; satellite operators seek to utilise different frequency bands in different jurisdictions around the world.
- Significant volume of gateway antenna sites required to support the frequent satellite handover (every 15-20 minutes in the case of LEO satellites).
- Complexity of architecture and ground system technology required for tracking multiple satellites.
- Smaller antennas and gateways typically require more compact sub-systems.
- High frequency bands in the RF spectrum are becoming increasingly congested; satellite operators seek to utilise different frequency bands in different jurisdictions around the world.
Low Earth Orbit (LEO) Satellites are in orbit at altitudes between 160 to 2,000 kilometres. For complete Earth coverage and due to their limited (momentary) Field of View (FoV), a high number of satellites are required. Unlike GEO satellites, which are stationary relative to the Earth’s rotation, LEO satellites at 1000Km altitude have an orbital velocity relative to the Earth of about 7.3km/s.
On the ground, this means 2 to 3 antennas must be provided for tracking and satellite changeover. However, due to the reduced gain requirement these antennas are smaller than GEO satellite antennas – typically having a maximum diameter of 2.4m and using both Ka- and Ku-bands.
With low cost, ease of maintainability, small form factor and extended bandwidth all expected requirements for LEO ground segment equipment, ETL has a range of products designed to fit these needs, depending on the antenna hub requirements. ETL’s latest introduction, the Genus chassis, is a compact common chassis with a range of functions, broad frequency ranges and a scalable design to fit into small and large teleports.
LEO applications broadly fit into two categories:
Broadband internet access direct to end users/consumers
For latency critical applications e.g. Financial transactions, autonomous cars, remote video surgery etc LEO’s will be the first choice as the round-trip latency of a LEO satellite is roughly 10 times lower than a GEO satellite.
Enterprise and Government
As some planes in some LEO constellations are being laser linked this gives the possibly of a highly secure link independent of the internet. Ideal for private enterprise and government communications.
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Engineered for Reliable RF Performance
Every RF environment is unique. Our expert engineers design and manufacture systems tailored to your specifications — ensuring unmatched scalability, reliability, and performance.