56                               Keysight X-Series Signal Generators Error Messages
Error Messages
List of Error Messages
-221 Settings conflict; A change in the clock rate has caused the skew to
     be outside the valid range. The skew has been set to zero.
            When the frequency is changed and the skew setting is to high or
            too low for the new frequency, this error is generated to report
            that the skew has been re-set to zero.
-221 Settings conflict; A change to the modulation type has limited the
     maximum symbol rate.
            A change to the modulation type has limited the maximum symbol
            rate.
-221 Settings conflict; All channels are off. Could not perform operation.
            This error is reported when an attempt is made to balance powers
            when all channels are off.
-221 Settings conflict; All timeslots with the payload (E) fields set to
     EXT have been reset to PN9. EXT is incompatible with combined EDGE/GSM
     mode.
            EXT is incompatible with combined EDGE/GSM mode.
-221 Settings conflict; AM cannot be in exponential mode in the lowest
     frequency band. AM has  been switched to linear mode.
            The lowest frequency band (9 kHz up to 5 MHz) does not have
            exponential AM.
-221 Settings conflict; An external reference frequency other than 10MHz