Rohde & Schwarz SMBV100B, Руководство пользователя

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Configuring the Internal Baseband Source
R&S
®
SMBV100B
129 User Manual 1178.4460.02 ─ 03
●
To use SCPI commands and create a file in binary format, see "To create a data list
in binary format" on page 176.
Access:
1. Select "Baseband > Custom Digital Mod > Data Source > Data List".
2. Select "Select Data List".
3. Navigate to the required directory.
Select "New" and enter a filename.
For example, in the directory
/var/user/
, enter "Filename" =
dl_3gpp
The "Data List Editor" is a list of binary values with a maximum length of 2
31
bits.
This value corresponds to a file size of approx. 268 Mbyte.
To increase readability, the bits are displayed in groups of four. The current cursor
position, the length of the list and the list filename are displayed above the list. The
offset starts with the value 0 which corresponds to the bit position on the left side of
the first row, i.e. the beginning of the list. On the left edge of the editor, the last
three offset positions are specified at the beginning of the row.
An existing list can be edited in the insert or replace mode. The upper right corner
shows the current mode.
SCPI command:
[:SOURce<hw>]:BB:DM:DLISt:SELect
on page 731
[:SOURce<hw>]:BB:DM:DLISt:DATA
on page 735
[:SOURce<hw>]:BB:DM:DLISt:DATA:APPend
on page 736
The buttons below the binary list simplify the editing.
Settings:
GoTo
Opens the entry window for the bit position. The cursor marks the bit at the selected
position.
Generating Custom Digital Modulated Signals