# Lesson 11 — From Radar to EW

<p class="block-synopsis">Block 1 put you in the threat's seat; Block 2 flips it. The radar range equation becomes a target list — every term one side designs to protect and the other to exploit — and the one-way/two-way asymmetry hands the listener its decisive advantage.</p>

<div class="block-toc">
  <a class="bt-card bt-reading" href="L11_RadarToEW_Reading.html">
    <span class="bt-kind">Reading</span>
    <h4>From Radar to EW</h4>
    <p>The range equation as a target list, the ES/EP/EA pillars, the listener's advantage, and the Block 2 roadmap.</p>
  </a>
  <a class="bt-card bt-flashcards" href="L11_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="L11_ListenersAdvantage_Demo.html">
    <span class="bt-kind">Demo</span>
    <h4>Listener's Advantage</h4>
    <p>Slide the range and watch the radar's $1/R^4$ echo fade while the RWR's $1/R^2$ intercept holds.</p>
  </a>
  <a class="bt-card" href="L11_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>
