Try this at home (and only at home), on a signal generator:<p>EAS combined tone (TV) 853 Hz sine-wave + 960 Hz sine-wave ("+" means simply combine both waves together, neither modulation nor any other fancy convolutions)<p>EAS single tone (AM radio) 1050 hz sine-wave<p>For iOS, <a href="http://sgenerator.scorpionzzz.com/en/index.html" rel="nofollow">http://sgenerator.scorpionzzz.com/en/index.html</a> is a full-featured signal generator.