<br><br><div><span class="gmail_quote">On 11/26/07, <b class="gmail_sendername">Wolfgang S. Rupprecht</b> <<a href="mailto:firstname.lastname@example.org">email@example.com</a>> wrote:</span>
<br><blockquote class="gmail_quote" style="border-left: 1px solid rgb(204, 204, 204); margin: 0pt 0pt 0pt 0.8ex; padding-left: 1ex;">I wonder how well this works on average. If this would work well<br>enough I don't believe we'd be seeing all the integrated GPS units for
<br>the claimed purpose of servicing E911. </blockquote><div><br><a href="http://en.wikipedia.org/wiki/E911#Wireless_Enhanced_911">http://en.wikipedia.org/wiki/E911#Wireless_Enhanced_911</a><br>I guess it's only the GSM/TDMA systems that use the towers to locate the transmitters.
<br></div><br>As for accuracy, I think I remember something on this list saying at least 300 feet 90% of the time in urban areas (as this is the defined minimum for E911) If someone has the exact numbers feel free to chime in