R&S ESR Series, User Manual

Page: 481 / 1126

Tracking Generator
R&S
®
ESR
478 User Manual 1175.7068.02 ─ 12
If both calibrations (open circuit, short circuit) are carried out, the calibration curve is
calculated by averaging the two measurements and stored in the memory. The order of
the two calibration measurements is irrelevant.
Remote command:
[SENSe:]CORRection:METHod
on page 902
Selects the reflection method.
[SENSe:]CORRection:COLLect[:ACQuire]
on page 901
Starts the sweep for open-circuit calibration.
Normalize ← Source Cal
Switches the normalization on or off. The softkey is only available if the memory con-
tains a reference trace. For details on normalization see
Chapter 8.4.5, "Normaliza-
tion" , on page 494.
Remote command:
[SENSe:]CORRection[:STATe]
on page 902
Reference Value Position ← Source Cal
Switches the reference line on or off. The reference line marks the reference position
at which the normalization result (calculated difference to a reference trace) is dis-
played. For details on the reference line see
Chapter 8.4.5, "Normalization" ,
on page 494.
Remote command:
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RPOSition
on page 846
Reference Value ← Source Cal
Opens an edit dialog box to enter a position value that shifts the reference line verti-
cally. By default, the reference line corresponds to a difference of 0 dB between the
currently measured trace and the reference trace.
If a 10 dB attenuation is inserted into the signal path between DUT and R&S ESR
input, for example after a source calibration, the measurement trace is moved down by
10 dB. Entering a reference value of -10 dB will also shift the reference line down by 10
dB and place the measurement trace on the reference line. The deviation from the
nominal power level can be displayed with higher resolution (e.g. 1 dB/div). The power
is still displayed in absolute values.
Remote command:
DISPlay[:WINDow<n>]:TRACe<t>:Y[:SCALe]:RVALue
on page 889
Recall ← Source Cal
Restores the settings that were used during source calibration. This can be useful if
instrument settings were changed after calibration (e.g. center frequency, frequency
deviation, reference level, etc).
Remote command:
[SENSe:]CORRection:RECall
on page 902
Softkeys of the Tracking Generator Menu