R&S ESR Series User Manual page 503

®
R&S ESR
Figure 8-9: I/Q modulation
I/Q modulation is performed by means of the built-in quadrature modulator. The RF sig-
nal is divided into two orthogonal I and Q components (in phase and quadrature
phase). Amplitude and phase are controlled in each path by the I and Q modulation
signal. By adding the two components an RF output signal is generated that can be
controlled in amplitude and phase.
Remote command:
SOURce<n>:DM:STATe
8.5 Displayed Information and Errors
Diagram header
In Tracking Generator measurement mode, some additional information is displayed in
the diagram header.
Label
INT TG: <source power>
INT TG: <start power>... <stop power>
EXT TG <1|2>: <source power>
LVL
FRQ
Measurement accuracy levels
NOR
User Manual 1175.7068.02 ─ 12
on page 903
Description
Internal tracking generator active
Internal tracking generator with power sweep active
External tracking generator (1 or 2) active
Power Offset (see
tors", on page 485
Frequency Offset (see
erators", on page 485
Normalization on;
No difference between reference setting and measurement
Tracking Generator
Displayed Information and Errors
Chapter 8.3, "Configuring Tracking Genera-
Chapter 8.3, "Configuring Tracking Gen-
500