The new Low Earth Orbit (LEO) and Non-Geostationary Satellites Orbit (NGSO) constellations in general have become a key trend in the satellite industry. NGSO open up new opportunities for potential users, including high data throughput, low latency, and ability to serve areas that previously had no satellite coverage.

The new generation of Comtech hubs supports a large number of satellites in different orbits and provides automatic roaming terminals between different networks while maintaining the same routing and QoS. Information about all the satellites, coverage zones and service periods is stored in the satellite modem and used to autonomously select the appropriate network/satellite for initial entry and further operation depending on the current location and time. The stored satellite information is also used to calculate frequency shift compensation (Doppler effect) and to proactively adjust network timing.

Comtech satellite routers can be used for fixed and/or mobile terminals, are compatible with mechanically and electronically steering antennas, and can also be connected with two antennas simultaneously for fast handoff between descending and ascending satellites. High throughput and adaptive modulation up to 256APSK provide highly efficient operation with different satellites, including High Throughput Satellites.