200 Keysight Signal Generators Programming Guide
Programming the Status Register System 
Status Groups 
Data Questionable Frequency Transition Filters (negative and positive)
Specifies which types of bit state changes in the condition register set corresponding bits in the event 
register. Changes can be positive (0 to 1) or negative (1 to 0).
Data Questionable Frequency Event Register
Latches transition events from the condition register as specified by the transition filters. Event 
registers are destructive read- only. Reading data from an event register clears the content of that 
register.
Commands:
STATus:QUEStionable:FREQuency:NTRansition <value> (negative transition) or 
STATus:QUEStionable:FREQuency:PTRansition <value> (positive transition) where <value> is the 
sum of the decimal values of the bits you want to enable.
Queries:
STATus:QUEStionable:FREQuency:NTRansition?
STATus:QUEStionable:FREQuency:PTRansition?
Query: STATus:QUEStionable:FREQuency[:EVENt]?