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TRACe - Subsystem R&S FSMR
1313.9723.12 6.1-232 E-1
TRACe<1|2>:IQ:FILTer:FLATness NORMal | WIDE
This command allows measurement with extended usable signal bandwidth for sample rates in the
range of 20.4 MHz to 40.8 MHz.
NORMal Normal operation
WIDE Extended usable signal bandwidth, reduced selectivity
Usable Bandwidth Sample Rate Range
NORMal WIDE
10.2 MHz < Sample Rate <= 20.4 MHz 0.8 * Sample Rate 0.9 * Sample Rate
20.4 MHz < Sample Rate <= 40.8 MHz 0.68 * Sample Rate 0.8 * Sample Rate
Example:
"TRAC:IQ:FILT:FLAT WIDE"
Characteristics: *RST value: NORM
SCPI: device-specific
TRACe<1|2>:IQ:SET <filter type>,<rbw>,<sample rate>,<trigger source>,<trigger slope>,
<pretrigger samples>,<# of samples>
This command defines the settings of the analyzer hardware for the measurement of I/Q data.
This allows setting the bandwidth of the analog filters in front of the A/D converter as well as setting
the sample rate, trigger conditions and the record length.
If this command is omitted, the current analyzer settings will be used for the
corresponding parameters.
Parameter:
<filter type>: NORMAL 'Selects the analog analyzer resolution filters as filter type. This is
currently the only available filter type.
Bandwidth of the analog filters in front of the A/D converter.
Value range: 300 kHz – 10 MHz in steps of 1, 3, 10 for <filter type> =
NORMal<sample rate>:Sampling rate for the data acquisition.
<rbw>:
Value range: 15.625 kHz, 31.25 kHz, 62.5 kHz, 125 kHz, 250 kHz, 500 kHz, 1
MHz, 2 MHz, 4 MHz, 8 MHz, 16 MHz, 32 MHz for <filter type> =
NORMal
Selection of the trigger source used for the measurement. <trigger mode>:
Values: IMMediate | EXTernal | IFPower | RFPower
IFPower and RFPower are available as of model 03 of the detector board assembly.
RFPower requires the TV and RF Trigger option FSP-B6.
After selecting IFPower and RFPower, the trigger threshold can be set with command
TRIG:LEV:IFP or TRIG:LEV:RFP.
<trigger slope>: Used trigger slope.
Values: POSitive (currently the only value supported)
<pretrigger samples>: Number of measurement values to be recorded before the trigger point.
Range: -16744447 (= -(224-1-512k)) to 65023 (= 64*1024 – 512 - 1). Negative
values correspond to a trigger delay.
For <trigger mode> = IMMediate the value must be 0.
<# of samples>: Number of measurement values to record.
Value range: 1 to 523776 (= 512*1024 . 512)