Rohde & Schwarz FSV3000, Руководство пользователя

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Common measurement settings
R&S
®
FSVA3000/ R&S
®
FSV3000
432 User Manual 1178.8520.02 ─ 08
Mismatched settings on multiple connected instruments
Multiple instruments can be connected to and use the same frontend at the same time.
The frequency conversion settings are identical for all connected instruments. Thus, if
you change a frequency setting on one instrument while the other is performing a mea-
surement, the measurement results no longer match the original measurement set-
tings. In this case, an error message is displayed ("Settings mismatch"). To restore the
original measurement settings on the frontend, change a frontend setting in the
R&S
FSV/A dialog.
Only one instrument can access the frontend to change settings at a time. While one
connected instrument changes hardware settings on the external frontend, the frontend
is locked for the other connected instrument. The second instrument gets a "Device
busy" message and must retry when the frontend is available again. In this case, start
a new measurement to access the frontend and change the settings.
Frequency Band Configuration ................................................................................... 432
Frequency Band ..........................................................................................................432
Reference Frequency ..................................................................................................433
Intermediate Frequency .............................................................................................. 433
Correction State .......................................................................................................... 433
Load Cable Correction S2p File .................................................................................. 433
Frequency Band Configuration
Defines the intermediate frequency (output) range of the external frontend.
The used Intermediate Frequency and the resulting Frequency Band that can be ana-
lyzed on the R&S FSV/A are indicated for reference.
The selected frequency band configuration is also indicated in the channel bar.
FE50DTR-type frontends can be used by an analyzer and a signal generator simulta-
neously. In this case, both channels use the same internal LO and thus both signal
paths operate on the same frequency. Therefore, if you want to analyze the signal from
the generator using the same frontend, make sure that the configured frequency bands
are identical on both instruments.
To use the extended analysis bandwidth option B1000, the external frontend must
downconvert all RF input signals to an IF frequency above 7.5
GHz. In this case, you
must set the frequency band to "IF High".
"IF High" A higher intermediate frequency is used on the external frontend,
resulting in a higher input frequency at the R&S
FSV/A.
"IF Low" A lower intermediate frequency is used on the external frontend,
resulting in a lower input frequency at the R&S
FSV/A.
Remote command:
[SENSe:]EFRontend<fe>:FREQuency:BCONfig:LIST?
on page 1043
[SENSe:]EFRontend<fe>:FREQuency:BCONfig:SELect
on page 1044
Frequency Band
Displays the range of the frequency band supported by the connected frontend (for ref-
erence only).
Data input and output