Rohde & Schwarz FSW13, User Manual

Page: 925 / 1150

Remote Commands
R&S
®
FSW
925 User Manual 1173.9411.02 ─ 19
Query parameters:
<TraceNumber> Trace number.
TRACE1 | ... | TRACE6
Example: TRAC3:X? TRACE1
Returns the x-values for trace 1 in window 3.
Usage: Query only
Manual operation: See "Spectrum Emission Mask" on page 113
11.8.2.5 Formats for Returned Values: ASCII Format and Binary Format
When trace data is retrieved using the
TRAC:DATA
or
TRAC:IQ:DATA
command, the
data is returned in the format defined using the
FORMat[:
​
DATA]
​
. The possible for-
mats are described here.
●
ASCII Format (FORMat ASCII):
The data is stored as a list of comma separated values (CSV) of the measured val-
ues in floating point format.
●
Binary Format (FORMat REAL,32):
The data is stored as binary data (Definite Length Block Data according to IEEE
488.2), each measurement value being formatted in 32 Bit IEEE 754 Floating-
Point-Format.
The schema of the result string is as follows:
#41024<value1><value2>…<value n>
with
#4 number of digits (= 4 in the example) of the following number of data bytes
1024 number of following data bytes (= 1024 in the example)
<Value> 4-byte floating point value
Reading out data in binary format is quicker than in ASCII format. Thus, binary format
is recommended for large amounts of data.
11.8.2.6 Programming Example: Configuring a Spectrogram
This example demonstrates how to configure a spectrogram for a basic frequency
sweep in a remote environment. The spectrogram is displayed in addition to the spec-
trum display, in a new window. In addition, the usage of special spectrogram markers
is demonstrated (see
chapter 11.8.3.6, "Marker Search (Spectrograms)" ,
on page 944).
Basic trace settings are demonstrated in the chapter 11.15.1, "Programming Example:
Performing a Basic Frequency Sweep" , on page 1088.
//-----------Preparing the Measurement ------------
*RST
Analyzing Measurements (Basics)