# Lesson 12 — Electromagnetic Support

<p class="block-synopsis">The box that turns a chaos of interleaved pulses into a labeled threat scope. We walk the radar warning receiver end to end — antenna, receiver, processor, display — and watch pulse parametrics and PRI resolve into a named emitter with a known mode.</p>

<div class="block-toc">
  <a class="bt-card bt-reading" href="L12_ElectromagneticSupport_Reading.html">
    <span class="bt-kind">Reading</span>
    <h4>Electromagnetic Support</h4>
    <p>ES vs ELINT, the four functions on OODA, the RWR block diagram, the PDW, and deinterleave-then-classify.</p>
  </a>
  <a class="bt-card bt-flashcards" href="L12_Flashcards.html">
    <span class="bt-kind">Flashcards</span>
    <h4>Review deck</h4>
    <p>Key terms and relations from the lesson, in a self-test deck.</p>
  </a>
  <a class="bt-card bt-demo" href="L12_RWRScope_Demo.html">
    <span class="bt-kind">Demo</span>
    <h4>RWR Scope</h4>
    <p>Read a live RWR scope as emitters appear, sort into buckets, and shift from search to track.</p>
  </a>
  <a class="bt-card" href="L12_Preflight.html">
    <span class="bt-kind">Pre-flight</span>
    <h4>Pre-flight quiz</h4>
    <p>Pre-class check, due before the lesson. Counts toward your IP grade.</p>
  </a>
</div>
