I/Q Modulation And Impairment Settings; I/Q Modulation - R&S SGT100A User Manual

®
R&S SGT100A
Carrier + Noise PEP / Signal + Noise PEP (Total Bandwidth) / Carrier + Interferer
PEP / Signal + Interferer PEP
Available only for "Mode > Additive Noise" and "Mode > CW Interferer".
Displays the peak envelope power (PEP) of the overall signal comprised of noise sig-
nal plus useful signal.
The output selected with the parameter
●
The name of this parameter
●
The units the overall power is measured in, dBm or dB (full scale)
Note: The peak envelope power ("PEP") displayed in the "Status bar" corresponds to
the PEP value of the carrier.
Remote command:
[:SOURce<hw>]:AWGN:POWer:SUM:PEP?

7.3 I/Q Modulation and Impairment Settings

7.3.1 I/Q Modulation

The R&S SGT offers I/Q modulation with:
●
External analog I/Q signals,
●
External digital signals,
●
Iternal digital signals.
Either the external digital signal or the externally or internally generated baseband sig-
nal is fed into the I/Q modulator ("I/Q Mod" function block).
The external signal is input via the I and Q connector and transferred directly to the I/Q
modulator ("I/Q Mod" function block). The external digital signal is configured in the
"BB In" function block (see
on page 235).
The internally generated baseband signal is configured in the Baseband function block
(see
lator, noise can be added and/or the signal can be impaired.
Impairments can also be set in the I/Q Mod menu to allow an externally applied analog
I/Q signal to be impaired. An internal baseband signal can thus be impaired both digital
(in the Impairment block in the Impairment menu) and analog in the I/Q modulator. If
impairments are set in both menus, they superimpose each other in the signal.
User Manual 1176.8674.02 ─ 07
Chapter 7.9, "External Baseband Signal - Baseband
Chapter 7.1, "Baseband",
I/Q Modulation and Impairment Settings
Display Mode
on page 349
on page 75). Before the signal is fed into the I/Q modu-
Signal Generator Settings
determines:
Input",
132