Common Measurement Settings
R&S
®
FSW
350
User Manual 1173.9411.02 ─ 19
How to Calibrate a Measurement Setup using an External Generator
1. Connect the signal generator's GPIB interface connector to the EXT.
GEN.CONTROL GPIB connector on the rear panel of the R&S
FSW.
2. Connect the signal generator output to the RF INPUT connector on the front panel
of the R&S
FSW.
3. If the signal generator supports TTL synchronization, connect the signal generator
to the FSW - B10 AUX.CONTROL port.
4. If the measurement setup does not require the full span of the R&S
FSW, change
the "Frequency Start" and "Frequency Stop" values (FREQ key > "Frequency Con-
fig" softkey).
5. Press the INPUT/OUTPUT key and select "External Generator Config".
6. In the "Interface Configuration" subtab, select the "Generator Type" connected to
the R&S
FSW.
If the required generator type is not available, define a new setup file as described
in
"To define a new generator setup file"
7. Select the type of interface and the address used to connect the generator to the
R&S
FSW.
8. If the generator supports "TTL Synchronization", activate this function.
9. Select "Reference: External" to synchronize the analyzer with the generator.
10. Switch to the "Measurement Configuration" subtab.
11. Set the "Source State" to "On".
12. Define the generator output level as the "Source Power".
13. Optionally, to define a constant level offset for the external generator, define a
"Source Offset".
14. The default frequency list for the calibration sweep contains 1001 values, divided in
equi-distant frequencies between the R&S
FSW's start and stop frequency. For
most cases, this automatic coupling should be correct. Check the "Result Fre-
quency Start" and "Result Frequency Stop" values to make sure the required mea-
surement span is covered. If necessary, change the frequency settings on the
R&S
FSW (FREQ key > "Frequency Config" softkey), or use a different generator
type.
15. Switch to the "Source Calibration" subtab.
16. Select the "Source Calibration Type": "Transmission" to perform a calibration
sweep and store a reference trace for the measurement setup.
17. Select "Source Calibration Normalize": "On".
Data Input and Output
