6 Input/Output
6.4 Data Source
6.4 Data Source
Contains controls that let you select the source of the data being fed to the
instrument analysis engine.
The ability to Save and Record files of I/Q data is an important feature of some X-
Series applications, and the Data Source controls allow you to switch back and forth
from actual data at the instrument input and recorded data from a File.
In addition, some measurements allow you to retain a single measurement record in
a Capture Buffer, and some measurements allow you to retain a specified length
data record internally in a Recorded data area.
So, for measurements that support it, the controls on this tab allow you to select
data from the instrument inputs, a recalled recording File, the Capture Buffer, or the
Recorded data area. For measurements that do not support these features, the Data
Source tab does not appear, and if :FEED:DATA SCPI is sent, an Undefined Header
error is generated.
The available choices depend on which measurement you are running. All
measurements support Input; Capture Buffer and File are only available in certain
measurements, as shown in the table below. The choice of the internal Recorded
data area is only available in Pulse Mode.
Measurement Capture Buffer File
WCDMA Code Domain x
WCDMA Mod Accuracy x
VMA Digital Demod x
VMA Custom OFDM x
5G NR Modulation Analysis x
FDD LTE-A Modulation Analysis x
TDD LTE-A Modulation Analysis x
WLAN Modulation Analysis x x
WLAN Spectral Flatness x
WLAN MIMO Modulation Analysis x
Analog Demod AM x
Analog Demod PM x
Analog Demod FM x
Analog Demod FM Stereo x
Bluetooth Transmit Analysis x x
IoT & SRComms LoRa CSS Demod x
2101 Short Range Comms & IoT Mode User's &Programmer's Reference
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