NASA/NSSC requires a Maintenance Agreement Extension for Spirent GPS/GNSS Simulators and intends to issue a sole source contract to Keysight Technologies, Inc. Performance of the services will be located at NASA/Goddard Space Flight Center (GSFC). No budget amount is specified. Interested organizations may submit their capabilities and qualifications in writing by 3:30 p.m. Central Standard Time on 7/16/2026 for consideration of a competitive procurement.