Spectrum Information Systems (SIS) Helpdesk

The Defece information Systems Agency (DISA) is seeking information from potential sources for the SIS Helpdesk to provide Tier II technical, administrative, and Electromagnetic Spectrum (EMS) operational support at the basic and advanced level for capabilities within the Global Electromagnetic Spectrum Information System (GEMSIS) program portfolio of applications on Secret Internet Protocol Routing network (SIPRNet) and Non-Classified Internet Protocol Routing network (NIPRNet). The applications include Joint Spectrum Data Repository (JSDR), Joint Spectrum Interference Resolution Online (JSIRO), Spectrum Twenty-One (SXXI), and End-to-End Supportability System (E2ESS). The draft Perfomance work Statement (PWS) was updated to remove CUI markings. * The purpose of this amendment is to extend the response due date to 27 February 2026.