(FSK) The use of frequency modulation to transmit digital data, i.e. two different carrier frequencies are used to represent zero and one.
FSK was originally used to transmit teleprinter messages by radio (RTTY) but can be used for most other types of radio and land-line digital telegraphy. More than two frequencies can be used to increase transmission rates.
- Frequency table
noun a statistical record of how often each value in a set of data occurs Examples A frequency table is used to summarize categorical, nominal, and ordinal data.
[adjective free-kwuh nt; verb fri-kwent, free-kwuh nt] /adjective ˈfri kwənt; verb frɪˈkwɛnt, ˈfri kwənt/ adjective 1. happening or occurring at short intervals: to make frequent trips to Tokyo. 2. constant, habitual, or regular: a frequent guest. 3. located at short distances apart: frequent towns along the shore. verb (used with object) 4. to visit often; […]
[free-kwuh n-tey-shuh n] /ˌfri kwənˈteɪ ʃən/ noun 1. the practice of ; habit of visiting often. /ˌfriːkwɛnˈteɪʃən/ noun 1. the act or practice of frequenting or visiting often
[fri-kwen-tuh-tiv] /frɪˈkwɛn tə tɪv/ Grammar adjective 1. noting or pertaining to a verb aspect expressing repetition of an action. noun 2. the frequentative aspect. 3. a verb in the frequentative aspect, as wrestle from wrest. /frɪˈkwɛntətɪv/ adjective 1. denoting an aspect of verbs in some languages used to express repeated or habitual action 2. (in […]