Satellite communications provider Globalstar has joined forces with defense contractor Parsons to launch a secure messaging and data transmission service for military applications. This partnership, announced December 3rd, utilizes a specialized waveform developed by Parsons to facilitate secure communication via Globalstar’s existing low-Earth orbit (LEO) satellite infrastructure. This waveform, a software-based signal processing technique, dictates data transmission and reception. Unlike hardware-based solutions, this software approach leverages Globalstar’s bent-pipe satellite architecture, simplifying integration and updates.
Globalstar operates a narrowband satellite network predominantly used for voice calls, text messaging, and low-bandwidth data applications such as asset tracking and emergency services. This distinguishes it from high-bandwidth providers like SpaceX’s Starlink, which focuses on high-speed internet access.
Mike Kushin, president of defense and intelligence at Parsons, highlighted Globalstar’s dual-frequency L-band and S-band architecture as a key attraction. The L-band handles uplink communications, while the S-band manages downlink communications. Globalstar’s bent-pipe architecture also influenced Parsons’ decision to partner exclusively with the satellite firm.
Unlike satellites with onboard processing, Globalstar’s satellites act as simple signal relays, with most data processing handled by ground-based gateways. This simplifies upgrades and integration of Parsons’ waveform, eliminating the need for satellite hardware modifications. “Traditionally, we haven’t had a lot of activities in the defense and the government sector, and Parsons presented a wonderful opportunity for us to find a partner that will utilize some of the advantages of our satellite architecture,” noted Mersad Cavcic, Globalstar’s chief marketing officer.
The collaboration aims to meet the demand for communication in areas with high radio frequency (RF) congestion, where civilian and military systems compete for spectrum, potentially leading to strained or disrupted communication pathways. “This service is designed to enhance resilience against disrupted communication pathways, providing reliable access in RF-congested environments,” stated Kushin.
The service has been successfully demonstrated in North America, with plans to expand to other military regions of interest. Parsons has developed compatible user equipment, including handheld phones and tracking devices, which can be either Parsons-designed or adapted third-party equipment.