![background image](http://html1.mh-extra.com/html/rands/znb/znb_user-manual_3286757640.webp)
GUI Reference
R&S
®
ZNB/ZNBT
640
User Manual 1173.9163.02 ─ 55
Load Bit Stream
A user-defined bit stream can be loaded from file and is repeated until the configured
is reached. If no pattern is loaded from file, the default pattern "10" is repeated
instead.
The "Bit Stream Load" dialog allows you to select a suitable "bit stream file".
Access:
"Load Bit Stream" button in
Such a bit stream file must be a 7-bit ASCII compatible text file; the Byte Order Mark
(BOM) that is common with UTF encodings is not allowed. Only the ASCII codes 0x30
(“0”) and 0x31 (“1”) will be interpreted, all other codes including whitespace and line
endings are ignored.
Remote command:
Symbol Rate
The "Symbol Rate" (= baud rate) defines the number of symbol changes per unit time,
or, equivalently, the symbol period (= 1 / "Symbol Rate").
To convert symbol rate to data rate, multiply the symbol rate with the number of bits per
symbol (2 bits per symbol for NRZ, ..., 4 bits per symbol for PAM-16).
Remote command:
CALCulate<Chn>:EYE:INPut:DRATe
Modulation
Defines the modulation of the generated bit stream (NRZ, PAM-4, PAM-8 or PAM-16).
Note
that for a modulation type other than NRZ, eye masks and eye mask tests will not
be available (the buttons on the
are grayed out).
Remote command:
CALCulate<Chn>:EYE:INPut:MODulation
High Level / Low Level
Defines the highest/lowest (nominal) voltage level of the multilevel signal that is used
to generate the related eye diagram.
type can only be changed in the advanced "Generator Settings" dialog
Applic Softtool