R&S FSW Series, Руководство пользователя

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General Instrument Setup
R&S
®
FSW
692 User 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)