Rohde & Schwarz ESRP Series, Руководство пользователя

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Tracking Generator
R&S
®
ESRP
471 User Manual 1175.7445.02 ─ 08
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
on page 871
8.5 Displayed Information and Errors
Diagram header
In Tracking Generator measurement mode, some additional information is displayed in
the diagram header.
Label Description
INT TG: <source power> Internal tracking generator active
INT TG: <start power>… <stop power> Internal tracking generator with power sweep active
EXT TG <1|2>: <source power> External tracking generator (1 or 2) active
LVL Power Offset (see Chapter 8.3, "Configuring Tracking Genera-
tors" , on page 456
FRQ Frequency Offset (see Chapter 8.3, "Configuring Tracking Gen-
erators" , on page 456
Measurement accuracy levels
NOR Normalization on;
No difference between reference setting and measurement
Displayed Information and Errors