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Get/Put the ultrasound maximum time-of-flight (UL)

This parameter is used by the beacons to wait for the ultrasound to attenuate. The beacon waits for at least this much time (in microseconds) after hearing another beacon's chirp before attempting a chirp. The default value is 45000 (45 ms). Valid values are from 0 to 65536 (65 ms).

Example (set ultrasound lifetime to 40000 microseconds):
P UL 40000<return>
UL 40000

Michel Goraczko 2004-12-02