The Cisco 3500 series Aironet access points can analyze up to 20 different kinds of interference in the air, and automatically self-adjust themselves for optimal signal broadcast-- all without the intervention of an IT staff member.

From the Cisco product page:

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<p class="expanded-spacing">Simplify wireless operations with:</p>

<ul class="bulleted">
	<li>Automatic interference mitigation for better reliability and performance</li>
	<li>Remote troubleshooting for fast problem resolution and less downtime</li>
	<li>Robust security with non-Wi-Fi detection for off-channel rogues</li>
	<li>Policy enforcement with customizable alerts to prohibit devices that interfere with the network</li>
</ul>
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<span class="content"><a href="http://www.cisco.com/en/US/products/ps10981/index.html">Check it out</a>
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