R&S SMW-K553, User Manual

Page: 23 / 44

External frontend configuration and settings
R&S
®
SMW-K553
23 User Manual 1179.4240.02 ─ 02
You can use R&S FE50DTR-type frontends simultaneously by an analyzer and a signal
generator, see "Connection Mode > Simultaneous RX/TX". In this case, both channels
(RX, TX) use the same internal local oscillator 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 at the signal analyzer, the exter-
nal 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". For details, see Table 4-1 .
Table 4-1: Simultaneous RX/TX mode and analyzer/signal generator equipment
Analyzer model Analyzer
hardware
Analysis
bandwidth
Signal generator
hardware
"Band Config"
R&S FSV(A)3007 </= B400 </= 400 MHz B1006, B1007 "IF Low"
</= B400 </= 400 MHz >/= B1012 "IF Low"
R&S FSV(A)3013 </= B400 </= 400 MHz B1006, B1007 "IF Low"
R&S FSV(A)3030
</= B400 </= 400 MHz >/= B1012 "IF Low", "IF High"
R&S FSV(A)3044
>/= B1000 </= 400 MHz B1006, B1007 "IF Low"
>/= B1000 > 400 MHz B1006, B1007 -
>/= B1000 </= 400 MHz >/= B1012 "IF Low", "IF High"
>/= B1000 > 400 MHz >/= B1012 "IF High"
"</=" denotes lower or equal, ">/=" denotes higher or equal.
"IF Low" A lower intermediate frequency is used on the external frontend,
resulting in a lower output frequency at the R&S
SMW.
"IF High" A higher intermediate frequency is used on the external frontend,
resulting in a higher output frequency at the R&S
SMW.
Remote command:
[:SOURce<hw>]:EFRontend:FREQuency:BAND:CONFig:CATalog?
on page 38
[:SOURce<hw>]:EFRontend:FREQuency:BAND:CONFig:SELect
on page 38
Frequency Band x ← Frequency Band Configuration
Displays the ranges of the frequency bands of the upconverted frequency depending
on the connected external frontend.
Frontends without gaps between upconverted frequencies have one frequency band,
frontends with gaps have two or more frequency bands. For supported frequency
ranges, see the data sheet.
Example: R&S FE44S and R&S FE50DTR frequency bands
This example illustrates frequency bands for R&S FE44S and R&S FE50DTR. The
R&S SMW is equipped with frequency option R&S SMW-B1006.
●
R&S FE44S: One frequency band from 24.00 GHz to 44.00 GHz
●
R&S FE50DTR: Two frequency bands from 36.00 GHz to 42.00 GHz and
46.40 GHz to 50.00 GHz
RF frontend settings