interrogating, ppl. a.
(ɪnˈtɛrəgeɪtɪŋ)
[f. interrogate v. + -ing2.]
Of a radio signal: intended to cause a transponder to emit a signal.
| 1946 Jrnl. Inst. Electr. Engin. XCIII. iiia. 332/1 In the earliest radar beacon systems the responder replied on the same frequency as the radar interrogating pulse. 1953 Electronic Engin. XXV. 416/1 The interrogating pulses are received by the balloon-borne unit. |