The NATO Communications and Information Agency (NCIA) is seeking information from qualified vendors to modernize its obsolete VHF radio system by implementing a TETRA-based communication system integrated with the Astrid network. The primary objectives include enhancing secure communication, ensuring interoperability with partners, and preparing for Astrid's 4G/5G migration scheduled by 2030. Vendors are encouraged to provide insights on technical feasibility, compliance, and cost estimates, focusing on two procurement models: NATO Owned - Contractor Operated (NOCO) and Contractor Owned - Contractor Operated (COCO). Responses to this Request for Information (RFI-06484) are due by 12:00 pm Brussels time on March 14, 2025, and should be directed to Esteban Diaz, with no obligation imposed on NATO for future procurements.