EMP, or pulses, are broadband. Take the Fourier transform of a short (~ 1 nsec) pulse and you'll see significant energy up through several GHz. In the EW envir

EMP, or pulses, are broadband. Take the Fourier transform of a short (~ 1 nsec) pulse and you'll see significant energy up through several GHz. In the EW environment, broadband pulse radiation can couple to slots, wires penetrating a Faraday shield, joints in the Faraday shield - really, a wide range of electrical discontinuities that act as receiving antennas if you hit them with the right wavelength. This lets you put HV pulses into sensitive circuits without knowing much about the target. Pulse countermeasures require more expensive engineering and fab. The system described may also have a continuous (microwave) capability for threats they know something about. If you know that $yourfavoritedrone has particular electrical resonances in its antennas, motor leads, or whatever, you could emit on those resonances and induce high voltage on those structures. Anyway, that's what I think they mean - this is both a pulse and CW emitter.