Tactical Communication Practice Test 2025 - Free Tactical Communication Practice Questions and Study Guide

Turning the function knob from OFF is the intended first step before using the numeric keypad because this action activates the keypad and prepares the system for input. Without this initial step, the numeric keypad may not respond, rendering any intended input ineffective. Ensuring that the function knob is turned on effectively powers the device and sets it to an operational mode, allowing the user to interact with it as intended. This is a fundamental part of the protocol for engaging with systems that rely on specific settings to function properly. Other options may involve settings or connections that could be necessary later, but they do not establish the initial readiness of the keypad for use.