Can sonar detect a human frequency?

Question

Can sonar detect a human frequency?

Answer 1

A sonar receiver is only capable of detecting the ultrasonic frequency that it is tuned for. Either the sensor or the filters of its electronics are expecting to receive only in that range and people can't emit a sound in that range. So the answer is NO.

Answer 2

Tell me what a "human frequency" is and I'll tell you.

Sonar in the active mode will detect anything that sound will bounce off, such as a human body.

Sonar in the passive mode will detect frequencies over the full audio range from 50Hz on up to well beyond 100 KHz.

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