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. 2022 May 20;22(10):3896. doi: 10.3390/s22103896

Table 5.

Different frequencies and applications of sonar.

Serial # Frequencies Application
1 3–30 Hz, ELF band Underwater communications and pinging
2 30–300 Hz, super low frequency (SLF) band Underwater submarine communications
3 300 Hz–3 kHz, ultra low frequency (ULF) band Underwater communications through dirt and rocks
4 3 kHz–30 kHz, very low frequency (VLF) band Near-sea-surface communications, navigation beacons
5 30 kHz–300 kHz, low frequency (LF) band Near-sea-surface communications, navigation beacons
6 3 kHz–30 kHz, VLF band Near sea surface communications, navigation beacons
7 Less than 1 kHz, 1 kHz–10 kHz, greater than 10 kHz, and less than 30 kHz Active sonar operation
8 50 kHz, 120 kHz, 200 kHz, and 455 kHz Sport fishing
9 120 kHz, and 200 kHz Sea floor imaging using deep towed sonar, and swath phase-bathymetric mapping
10 100 kHz–1 MHz Side-scan sonar
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