R&S ESU Series Operating Manual page 129

R&S ESU
Fig. 4.32 Zero span of a pulsed signal (high PRF)
Fig. 4.33 APD of a pulsed signal (high PRF)
For the disturbance which has high peak and average value, such as in
the APD curve shows high probability at high level as shown in
4.98
Instrument Functions
Fig. 4.35.
Operating Manual 1302.6163.12 - 03
APD Mode
Fig. 4.36,