La description

Key Facts The R&S®SMW-K22 option provides a high-quality pulse modulator with excellent on/off ratio and very short rise/fall times. The option offers two modes for the pulse edges. Transition type “fast” provides shortest rise/fall times, while transition type “smoothed” is suitable for devices under test that have problems with steep rising or falling edges.
Specifications Modulation source external, internal On/off ratio > 80 dB Rise/fall time 10 %/90 % of RF amplitude transition type = fast < 10 ns transition type = smoothed < 200 ns Pulse repetition frequency 0 Hz to 10 MHz Video feedthrough level < 10 dBm < 10 % of RF < 200 mV (peak-to-peak value) Pulse overshoot < 10 %''