TETRA Radio Systems (Terrestrial Trunked Radio)

ETSI-standardized digital trunked radio infrastructure and handsets used as the primary operational voice communications system for European and international public safety agencies, rail/transit operators, airports, and utility networks. TETRA is the dominant PMR standard in Europe, Middle East, Asia-Pacific, and Latin America. Key markets: UK Airwave network (Home Office, nationwide police/fire/EMS), European rail operational communications, and large industrial complexes. Primary suppliers: Motorola Solutions, Airbus Defence & Space (Tactilon), Hytera. The UK Airwave TETRA contract (£3.6B, critical national infrastructure) is due for replacement with ESN (Emergency Services Network over LTE) — a transition that has been delayed repeatedly since 2017.

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1 company produce tetra radio systems (terrestrial trunked radio).

Hytera Communications Co. Ltd.

HQ CN20% share

Hytera Communications Co. Ltd. (Shenzhen, Guangdong; SZSE: 002583; ~$1.5B revenue) is the world's second-largest digital two-way radio manufacturer and a significant P25 and DMR radio producer for international markets. Hytera produces P25, DMR, TETRA, and analog radio equipment sold in approximately 120 countries. Hytera's P25 radios incorporate AMBE codec technology via DVSI license. In 2020, a US federal jury found Hytera had stolen trade secrets from Motorola Solutions including source code used to develop Hytera's DMR radio products; the jury awarded $543 million in damages. In 2022, the US FCC added Hytera to its Covered List under the Secure and Trusted Communications Networks Act, effectively banning use of federal funds to purchase Hytera equipment for public safety communications in the United States. The National Defense Authorization Act (NDAA) provisions further restrict Hytera equipment from federal agency use. Despite US restrictions, Hytera remains a major supplier to international public safety and commercial radio markets.