Provides Tier 1 service desk support for deployable tactical communications systems. Troubleshoots SATCOM terminals, radios, networking, servers, encryption, voice, video, and connectivity; manages incidents, tickets, RMAs, spare parts, access requests, system scans, and configuration changes. Maintains operational connectivity visibility and coordinates users, warehouses, gateways, and cybersecurity compliance activities across NIPRNet, SIPRNet, and commercial networks.