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multi-frequency
multi-frequency adj. 
/ˌməlˌtaɪˈfrikwənsi/, /ˌməltəˈfrikwənsi/ Electronics capable of receiving, operating across, or generating a range of frequencies.
Brit. /ˌmʌltɪˈfriːkwənsi/
, /ˌmʌltɪˈfriːkwənsi/U.S. /ˌməltiˈfrikwənsi/
, /ˌməltiˈfrikwənsi//ˌməlˌtaɪˈfrikwənsi//ˌməltəˈfrikwənsi/ΚΠ
1911 H. M. Hobart Electr. Propulsion Ships xv. 154 The example may be taken of two components of a multi-frequency generator.
1936 Proc. Royal Soc. 1935–6 A. 153 640 Experiments..dealing with the variation of the reflexion coefficient with time (as distinct from the multi-frequency method used here).
1968 IEEE Trans. Communication Technol. 16 624/1 The Touch-Tone dialing feature offered by the Bell System requires a multifrequency audio oscillator in the subscriber's set.
1991 Compute Nov. 54/2 You need multifrequency monitors to display Super VGA and 8514.
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