4 ms·

The same way it would know where it is with the 6240-6740 MHz beacons.

• oh_sigh 12y ago
  The beacons probably output a continuous wave of a certain amplitude at that frequency. This would be classed as interference on at least the wifi spectrums so it is not allowed.
  • kstenerud 12y ago
    That's why you send actual 802.11 messages instead of a continuous wave.
    • oh_sigh 12y ago
      And how do you determine your location based on an 802.11 message?
      • kstenerud 12y ago
        The same way you determine a location based on any regularly occurring radio signal (in fact, the same way they propose to determine location in their requested spectrum). The only reason to encode a proper 802.11 message would be so as not to interfere with other devices in range.