84                               Keysight X-Series Signal Generators Error Messages
Error Messages
List of Error Messages
            A pulse period has been entered that is smaller than the pulse
            width. The instrument automatically adjusts the pulse period to
            match the pulse width.
-221 Settings conflict; The puncture rate is > 60 on {name} channel
     {value}, increase the {name} Slot Format or edit the {name} fields to
     reduce the puncture percent.
            The puncture rate of each TrCH should be smaller than 60%, which is 
            displayed on UI screen as "Max Puncture" value. Max Puncture is
            calculated as (1 - Puncturing Limit) * 100. Puncturing Limit is
            defined at 3GPP STD TS 125 331. To avoid the error, increase the
            symbol rate of physical channel, decrease the number of bits of the 
            TrCH, or align the rate matching attribute of each TrCHs.
-221 Settings conflict; The puncture rate is >= {value} percent on DCH Ch
     {value}, increase the DPCH Slot Format or edit DCH fields to reduce
     the puncture rate. All DPCH channels were turned off.
            Transport channels cannot be punctured more than X%. The slot
            format needs to be increased (which in turn increases the symbol
            rate) on the underlying DPCH channel, or the transport channel
            parameters must be changed to reduce the puncture percentage. The
            underlying DPCH channel has been turned off.
-221 Settings conflict; QPCH and FFCH/OCNS cannot be on at the same time.
     FFCH/OCNS has been turned off.
            QPCH is generated using both channel 3 and 4. Channel 4 is now used 
            to generate QPCH. Channel 3 can no longer generate FFCH/OCNS.
            Therefore, FFCH/OCNS must be turned off.