Rohde & Schwarz FSWP Series - Page 134

Remote Commands for the I/Q Analyzer
R&S
®
FSWP
134User Manual 1177.5856.02 ─ 07
<PretriggerSamp> Defines the trigger offset in terms of pretrigger samples. Nega-
tive values correspond to a trigger delay.
This value also defines the interval between the trigger signal
and the gate edge in samples.
Range: -1399999999 to 1399999999
*RST: 0
<NumberSamples> Number of measurement values to record (including the pretrig-
ger samples).
See Chapter 4.1.1, "Sample Rate and Maximum Usable I/Q
Bandwidth for RF Input", on page 21.
*RST: 1001
Example:
TRAC:IQ:SET NORM,0,32MHz,EXT,POS,0,2048
Reads 2048 I/Q-values starting at the trigger point.
sample rate = 32 MHz
trigger = External
slope = Positive
TRAC:IQ:SET NORM,0,4 MHz,EXT,POS,1024,512
Reads 512 I/Q-values from 1024 measurement points before the
trigger point.
filter type = NORMAL
sample rate = 4 MHz
trigger = External
slope = Positive
Manual operation:
See " Record Length " on page 60
TRACe:IQ:SRATe <SampleRate>
This command sets the final user sample rate for the acquired I/Q data. Thus, the user
sample rate can be modified without affecting the actual data capturing settings on the
R&S FSWP.
Note: The smaller the user sample rate, the smaller the usable I/Q bandwidth, see
Chapter 4.1.1, "Sample Rate and Maximum Usable I/Q Bandwidth for RF Input",
on page 21.
Parameters:
<SampleRate> The valid sample rates are described in Chapter 4.1.1, "Sample
Rate and Maximum Usable I/Q Bandwidth for RF Input",
on page 21.
*RST: 32 MHz
Default unit: HZ
Manual operation: See " Sample Rate " on page 59
Configuring I/Q Analyzer Measurements