Because this is a , controlled cryptographic item (CCI), the full, unrestricted technical manual (TM) is generally restricted to Department of Defense (DoD) personnel and authorized contractors. However, this guide provides a comprehensive technical overview and operational framework for those looking to understand the system's capabilities and basic interface. 1. System Overview

Side-mounted ports for KDU (Keypad Display Unit), GPS antennas, and data cables.

In one common veteran story, a signal officer’s unit was pinned down in a remote valley where satellite signals were spotty. The was their only link to air support, but the settings for the specific encryption were buried deep in the technical manual. Because the manual is often hundreds of pages of dense jargon, the "story" is usually about the frantic, flashlight-lit search through the index while under pressure. In the end, the radio’s dual-channel capability allowed them to maintain a ground-to-ground link while simultaneously reaching a satellite—a feat older radios couldn't manage. 2. The Manual as a "Shield"

This document is a training aid and not a substitute for official L3Harris or U.S. Government technical publications. Always follow unit SOP and COMSEC procedures.