R&S FSW Series - Page 692

General Instrument Setup
R&S
®
FSW
692User Manual 1173.9411.02 ─ 43
Save Settings..............................................................................................................693
Clear Settings..............................................................................................................693
Touchstone File Information........................................................................................ 694
└ ID.................................................................................................................. 694
└ Filename....................................................................................................... 694
└ Active............................................................................................................ 694
└ To - From.......................................................................................................694
Add Touchstone File....................................................................................................694
Remove File................................................................................................................694
Move File Up or Down.................................................................................................695
Frequency Response active........................................................................................695
Frequency Response File Information........................................................................ 695
└ ID.................................................................................................................. 695
└ Filename....................................................................................................... 695
└ Magnitude..................................................................................................... 695
└ Phase............................................................................................................695
Add Freq Resp File..................................................................................................... 696
Remove Frequency Response File.............................................................................696
Preview....................................................................................................................... 696
└ Selected File................................................................................................. 696
└ IQ Mode........................................................................................................ 697
└ Spectrum Mode.............................................................................................698
State
Enables or disables the general usage of user-defined frequency response correction
settings. If activated, the data in the active correction files is combined to create a filter.
This filter is applied to the measurement results of subsequent sweeps.
Remote command:
[SENSe:]CORRection:FRESponse<si>:USER:STATe on page 1286
Testing the validity of the correction setting:
[SENSe:]CORRection:FRESponse<si>:USER:VALid? on page 1287
Ext. PA Correction
This function is only available if an external preamplifier is connected to the R&S FSW,
and only for frequencies above 1 GHz. For details on connection, see the preamplifier's
documentation.
Using an external preamplifier, you can measure signals from devices under test with
low output power, using measurement devices which feature a low sensitivity and do
not have a built-in RF preamplifier.
When you connect the external preamplifier, the R&S FSW reads out the touchdown
(.S2P) file from the EEPROM of the preamplifier. This file contains the s-parameters of
the preamplifier. As soon as you connect the preamplifier to the R&S FSW, the pream-
plifier is permanently on and ready to use. However, you must enable data correction
based on the stored data explicitly on the R&S FSW using this setting.
When enabled, the R&S FSW automatically compensates the magnitude and phase
characteristics of the external preamplifier in the measurement results. Any internal
preamplifier, if available, is disabled.
Frequency Response Correction (R&S
FSW-K544)