Rohde & Schwarz EVSG-B1, Руководство пользователя

Страница: 137 / 418

Numeric Measurement Modes
R&S
®
EVSG1000
137 User Manual 1178.6227.02 ─ 06
"Low Dist" 15 dB attenuation
Provides a low sensitivity. Suitable when analyzing a nearby signal, to
avoid overload due to high-level signals.
Remote command:
SETATTMODE
on page 246
LF Imp.
Switches the impedance for the LF input between 50
Ω
and 20 k
Ω
.
For an impedance of 20 k
Ω
, the level is indicated as the voltage of the EMF (no-load
voltage). The unit is automatically set to "dBµV(EMF)".
Remote command:
NDB_LFIN_IMPEDANCE
on page 347
Transducer Correction
Configures the level correction. The specified value is added to the measured power
levels to compensate for an inherent offset by the measurement setup, for example the
antenna.
Remote command:
NDB_EXTERNALATT_LFIN
on page 346
4.5.3.4 Setting the Bandwidth
Access : [BW]
Access VNC : [e]
The bandwidth determines the frequency range for which the measurement is per-
formed. Depending on the measurement mode, and whether a wideband or a specific
frequency is measured, different settings are available.
IF BW .......................................................................................................................... 137
IF BW Dist ................................................................................................................... 137
IF BW
Demodulation bandwidth used for level and modulation measurement.
Remote command:
NDB_DEM_ID_BW
on page 346
IF BW Dist
Specifies the IF filter bandwidth for audio and distortion measurements.
Remote command:
NDB_DEM_DIST_BW
on page 346
4.5.3.5 Setting the Measurement Time (MTime)
Access : [MTime]
Access VNC : [d]
Non-Directional Beacon Mode (Option R&S EVSG1-K7)