(electrical engineering) Able to operate on two different electrical frequencies. / (radio communications) Able to receive and operate on two different radio frequencies.

(linguistics) A list of the most commonly used words, or phrases, in a particular language, corpus, etc.

plural of absolute frequency

Having a relatively low frequency

A form of frequency modulation in which digital information is transmitted through discrete changes of the frequency of a carrier wave.

(broadcasting, radio, television) The frequency area from 30 MHz through 300 MHz, commonly used for radio and TV broadcasting.

Alternative spelling of frequency-shift keying

(electronics) Ultra Low Frequency, the band of radio waves between 300 hertz and 3000 hertz.

(electronics) The band of radio frequencies from 3 to 30 hertz

(radio, telecommunications) The storage and retrieval of data using tags attached to individual packages, animals or people; the tags contain an integrated circuit to store and process the data, and an antenna to transmit and receive such data.