low frequency

Definition of Low Frequency in English :

1. lf, low frequency

30 to 300 kilohertz

2. low frequency, low pitch

a pitch that is perceived as below other pitches

WordNet Lexical Database for English. Princeton University. 2010.

Low Frequency

noun

1.

a radio-frequency band or a frequency lying between 300 and 30 kilohertz

. low-frequency

2.

of or relating to such bands or frequencies

adjective

telecommunications

using, requiring, or involving a radio-frequency band or a frequency lying between 300 and 30 kilohertz

The ships use low-frequency sound to search for undersea threats including submarines.

any radio frequency between 30 and 300 kilohertz

n. Abbr. LF

A radio frequency in the range from 30 to 300 kilohertz.