Rohde & Schwarz R&S ZNB - Page 221

Concepts and Features
R&S
®
ZNB/ZNBT
221User Manual 1173.9163.02 ─ 53
– LO signals (1 or 2, from below): Signal source (analyzer port or external gener-
ator), fixed power and frequency (or frequency sweep range, if the RF signal is
at fixed frequency), frequency conversion settings.
– IF signal (right side): Analyzer port number (e.g. Port 2), frequency range =
(sweep range + LO) or |sweep range – LO|, expected fixed power.
●
The following mixer signal diagram corresponds to a power sweep:
– RF signal (left side): Analyzer port number (e.g. Port 1), power sweep range or
fixed power, CW frequency, frequency conversion settings (1 / 1 denotes no
conversion).
– LO signals (1 or 2, from below): Signal source (analyzer port or external gener-
ator), fixed power or power sweep range, CW frequency, frequency conversion
settings.
– IF signal (right side): Analyzer port number (e.g. Port 2), fixed frequency = (RF
+ LO) or |RF – LO|, expected power range.
●
The following mixer signal diagram corresponds to a Time or CW mode sweep:
– RF signal (left side): Analyzer port number (e.g. Port 1), fixed power, CW fre-
quency, frequency conversion settings (1 / 1 denotes no conversion).
– LO signals (1 or 2, from below): Signal source (analyzer port or external gener-
ator), fixed power, CW frequency, frequency conversion settings.
– IF signal (right side): Analyzer port number (e.g. Port 2), fixed frequency = (RF
+ LO) or |RF – LO|, expected fixed power.
The ports in the mixer signal diagrams are physical ports. To measure mixers with dif-
ferential inputs, define a logical port configuration and enter one of the physical ports
that belong to the logical port. The analyzer implicitly accounts for the logical port set-
tings.
Optional Extensions and Accessories