Spectrum Measurements
R&S
®
ESR
355
User Manual 1175.7068.02 ─ 12
Remote command:
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RLEVel:OFFSet
Ref Level Position
Opens an edit dialog box to enter the reference level position, i.e. the position of the
maximum AD converter value on the level axis. The setting range is from -200 to
+200
%, 0
% corresponding to the lower and 100
% to the upper limit of the diagram.
Remote command:
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RPOSition
Grid Abs/Rel
Switches between absolute and relative scaling of the level axis (not available with
"Linear" range).
"Abs"
Absolute scaling: The labeling of the level lines refers to the absolute
value of the reference level. Absolute scaling is the default setting.
"Rel"
Relative scaling: The upper line of the grid is always at 0 dB. The
scaling is in dB whereas the reference level is always in the set unit
(for details on unit settings see the "Unit" softkey).
Remote command:
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:MODE
Noise Correction
If activated, the results are corrected by the instrument's inherent noise, which increa-
ses the dynamic range.
"ON"
A reference measurement of the instrument's inherent noise is carried
out. The noise power measured is then subtracted from the power in
the channel that is being examined.
The inherent noise of the instrument depends on the selected center
frequency, resolution bandwidth and level setting. Therefore, the cor-
rection function is disabled whenever one of these parameters is
changed. A disable message is displayed on the screen. Noise cor-
rection must be switched on again manually after the change.
"OFF"
No noise correction is performed.
"AUTO"
Noise correction is performed. After a parameter change, noise cor-
rection is restarted automatically and a new correction measurement
is performed.
Remote command:
Input (AC/DC)
Toggles the RF input of the R&S
ESR between AC and DC coupling.
Remote command:
Input 50 Ω/75 Ω
Uses 50 Ω or 75 Ω as reference impedance for the measured levels. Default setting is
50 Ω.
Configuration
