R&S SMW-K553, Руководство пользователя

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Operating external frontends
R&S
®
SMW-K553
18 User Manual 1179.4240.02 ─ 02
Once a lock is established successfully, the R&S SMW sets the intermediate fre-
quency (IF) at R&S FE50DTR. In the "RF Frontend" dialog, the displayed IF value
"Intermediate Frequency" > "Unavailable due to missing lock" changes to a fixed
value, e.g. "Intermediate Frequency" > "4.1875
GHz".
Note: Intermediate frequency and frequency band configuration. Intermediate fre-
quencies depend on the hardware equipment of the R&S SMW, the signal analyzer
and the R&S FE50DTR.
See also Table 4-1 .
For more information, see data sheet.
4. Make sure that this IF value is the same for the IF out signal at the signal analyzer.
For example, at the R&S FSV/A, check the following:
a) To navigate to the frontend configuration, select "Overview"" > "Input" > "Input
Source Config" > "Input Source" > "External Frontend" > "Frontend Config".
b) In "Frequency Settings" panel of the "Frontend Config" tab, check "Intermediate
Frequency".
Control handover to signal analyzer
Once a lock is established successfully, the R&S SMW releases the lock at the
R&S FE50DTR. If needed, the signal analyzer can take over control of the
R&S FE50DTR. The signal analyzer sets for Rx mode at the R&S FE50DTR and reads
out the frequency band configuration. This information is needed to derive the RF fre-
quency from the DUT from the measured IF input frequency.
Controlling external frontends