Gralla  <br/><br/>
How wireless works  
/ Preston Gralla; illustrated by Eric Lindley. 
 - 2nd ed.. 
 - Indianapolis  Que  2006. 
 - xiii, 259p.  col., ill.  26cm 
<br/><br/> Includes index p.249 - 259 
<br/><br/><label>ISBN: </label>0789733447  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Wireless communication systems
<br/><br/><label>Dewey Class. No.: </label>621.384 GRA 2006