dual-frequency

English edit

dual-frequency (not comparable)

(electrical engineering) Able to operate on two different electrical frequencies.
- 1961 May, “New European motive power: I - German dual-voltage locomotives”, in Trains Illustrated, page 305:
  Trials with three experimental dual-frequency mixed-traffic locomotives intended for use on the Saar's 15kV 16⅔-cycle (German) and 25kV 50-cycle (French) lines have proved so successful that the German Federal Railway is contemplating the construction of a fleet of 20 to 25 similar machines.
(radio communications) Able to receive and operate on two different radio frequencies.