98 
Instrument Messages
Event Messages
–221 Settings conflict; 
Signal Track is 
turned off when Zero 
Span is selected
Signal Track is not available when you have selected Zero Span. So if Zero 
Span is entered while in Signal Track is On, Signal Track is turned off
–221 Settings Conflict; 
Span limited to XXX
–221 Settings conflict; 
Span Zoom is not 
available in Zero 
Span
Span Zoom does not work with a time domain X-axis. You must select a span 
greater then 0 Hz
–221 Settings conflict; 
Step keys are not 
available to modify 
this function
You should select a specific value for this function. Using the 
Up/Down 
step keys to scroll through values is not allowed
–221 Settings conflict; 
Sweep Setup only 
available in swept 
measurements
The current measurement uses FFT mode, so does not use the Sweep Setup 
menu
–221 Settings conflict; 
Sweep Time cannot be 
auto-coupled in FFT 
sweeps
The sweep time for FFT sweeps is set by the calculations. So sweep time 
settings cannot be adjusted
–221 Settings conflict; 
Sweep Time cannot be 
auto-coupled while in 
Zero Span
You cannot send the remote command to set the sweep time to auto while 
you are in zero span
–221 Settings conflict; 
Sweep Time cannot be 
set while in FFT 
sweeps
The sweep time for FFT sweeps is set by the calculations. It cannot be 
manually controlled
–221 Settings conflict; 
Swept IF Gain High 
not available when 
FFT IF Gain = Manual 
Low
When FFT IF Gain is manually set to Low, you cannot set the Swept IF Gain to 
High because that would make the Reference Level couplings wrong in 
swept mode
–221 Settings conflict; 
Swept LO not 
available when freq 
mode is Fixed
SCPI only message. The LO Mode cannot be set to Swept when the freq 
mode is set to fixed. Change the freq mode away from fixed, or perform the 
measurement at several fixed frequencies
–221 Settings conflict; 
Swept Type=Swept is 
not available while 
in Gated FFT
If you have selected gated FFT then you are using the FFT sweep type and 
you cannot select the swept type of sweeping
Err# Message Verbose/Correction Information