Comtech’s SLM-5650B Becomes First Sovereign-certified Modem to Operate on SES’s O3b mPOWER MEO Satellite Constellation

(NASDAQ:CMTL) CHANDLER, Ariz.--(BUSINESS WIRE)---- $CMTL #5G--Sept. 10, 2025-- Comtech Telecommunications Corp. (NASDAQ: CMTL) (“Comtech” or the “Company”), a global communications technology leader, today announced the company’s market-leading software defined SLM-5650B became the first sovereign-certified modem to receive Government Terminal Certification (“GTC”) to operate on SES’s Medium Earth Orbit (“MEO”) O3b mPOWER satellite constellation. Operating on the high-throughput low-latency O3b mPOWER system, Comtech’s SL