Final answer:
STC within SINCGARS relies on the EPLRS subsystem, allowing secure data transmission and formation of a robust communication network.
Step-by-step explanation:
The STC (Secure Trunking Capability) is dependent on the EPLRS (Enhanced Position Location Reporting System) subsystem of the SINCGARS (Single Channel Ground and Airborne Radio System). The STC relies on the EPLRS to provide secure data communications and establish trunking capabilities. EPLRS allows for the digital transmission and reception of information among nodes, forming a robust, self-healing network which is essential for supporting the STC component of the SINCGARS.
Learn more about SINCGARS EPLRS