Keysight E6610A, Руководство пользователя и программирования

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7 Setting up Measurements
Keysight E6610A User and Programming Guide 25
2.
Send a ping command for the serial number of the desired E6610A fol-
lowed the subnet address, e.g. type "ping KR56180110.companyX.com".
3.
The results from the ping command will show the instrument's IP
address.
Click the Connect button. You will see a message when the connection is done,
and the connection status displayed in the bar at the bottom of the GUI window
will change from "Disconnected" to "Connected."
Configure Signal Generation and Analysis Parameters
The next step is to click on each of the tabs in the Settings area on the left side of the
window to configure the radio access technology (RAT), CPRI link interface, CPRI
Tx/Rx, and RF Rx and Tx parameters. You may also want to set up the trigger and
reference signals. The procedure below describes an example setup. For a more
complete description of the available settings and measurements, see
"GUI Menus
and Displays".
Tooltip help hints are available for each parameter on the GUI.
Place the mouse cursor in the data entry field and a pop-up will
appear with help information about that parameter, including a
brief description of the parameter and the range of allowed
values, where applicable.
Select Radio Access Technology (RAT)
These are global parameters that apply to all of the CPRI and RF transmitters and
receivers.
1. Click the drop-down menu to select LTE FDD or LTE TDD. These selections are
only available if a valid license is installed in the E6610A for the
N5121A LTE FDD or N5122A LTE TDD applications.
2. Select the system bandwidth: 5, 10, or 20 MHz.
3. For LTE TDD, select the uplink/downlink configuration and the special subframe
configuration. The software includes downlink test models E-TM 1.1, 3.1, and
uplink fixed reference channel FRC A3 for the combinations of configuration val-
ues in the drop-down menu. Other configurations can be tested by using user-
supplied waveform files and choosing the "Custom" setting for the con-
figuration.