Seems weird that the second value (40) is in Hz. It doesn't specify the duration of the burst, if it is in bursts. Is it once cycle of a 10 KHz tone 40 times

Seems weird that the second value (40) is in Hz. It doesn't specify the duration of the burst, if it is in bursts. Is it once cycle of a 10 KHz tone 40 times a second, or more? Very odd.