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GUI reference

R&S

ZNB/ZNBT

693User Manual 1173.9163.02 ─ 62

Remote command:

CALCulate<Chn>:EYE:INPut:BPATtern:TYPE

Length

Length of the bit stream.

For a user defined Bit Stream the length can be specified in terms of bits, Kibits (2^10

bits), Mibits (2^20 bits), Gibits (2^30 bits).

Remote command:

CALCulate<Chn>:EYE:INPut:LENGth:PRBS

CALCulate<Chn>:EYE:INPut:LENGth:BITS

Load Bit Stream

A user-defined bit stream can be loaded from file and is repeated until the configured

Length 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 Eye Diagram dialog

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”) are interpreted, all other codes including whitespace and line end-

ings are ignored.

Remote command:

MMEMory:LOAD:EYE:BPATtern

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).

Applic softtool

R&S ZNB Series User Manual

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