Keysight N2820A User Manual page 41

Making Measurements 2
To Make Measurements Without Interrupting Your DUT
Figure 18 illustrates how the MBB connection changes as you
gently push the receptacle onto the header while using an
N2822/4A head. Figure 19 on page 43 shows the schematic when
using the MBB with an N2825A user-defined head.
N2820/1A User's Guide 41