Keysight Technologies M8000 Series

322 Keysight M8000 Series of BER Test Solutions User Guide
6 Setting up Analyzer
3 Select 'Ext. Clock Recovery' as Clock Source of M8046A.
4 Choose one of the available external clock recoveries under "External
Clock Recovery".
For further details, refer to section Controlling N1076A/77A from M8070A
on page 226.