Summary
The Defense Information Systems Agency (DISA) is issuing a Request for Information (RFI) seeking industry feedback on proposed changes to MIL-STD-188-164 (Interoperability of Super High Frequency Satellite Communications Terminals) and MIL-STD-188-165 (Interoperability of SHF Satellite Communications PSK Modems). The RFI focuses on five technical areas including digital intermediate frequency interoperability, management of non-linear characteristics in Gallium Nitride amplifiers, virtual modem software-to-platform interoperability, minimum server/hardware specifications, and transmission security (TRANSEC) implementation. DISA will host an Industry Week event at NIWC Pacific in San Diego, California from August 3-7, 2026, and written industry responses are due by July 17, 2026 11:59 PM EDT; this is a request for information only and is not a solicitation for proposals.