The government is seeking one immediate software suite acquisition to upgrade antenna pattern testing capabilities at the Benefield Anechoic Facility. It intends to negotiate on a sole source basis with NSI-MI for the A4 Software Enterprise Suite, citing cybersecurity mandates and the facility’s existing proprietary NSI-MI hardware ecosystem. Replacing the software with a non-NSI-MI solution would require costly new hardware and cause significant facility downtime. Although this is not a request for competitive proposals, responsible sources may submit capability statements for consideration. No performance timeline or budget amount is specified in the notice.