MSRA configuration
R&S
®
FSWP-B1
35
User Manual 1177.5862.02 ─ 09
RF Input Protection
The RF input connector of the R&S
FSWP must be protected against signal levels that
exceed the ranges specified in the data sheet. Therefore, the R&S
FSWP is equipped
with an overload protection mechanism. This mechanism becomes active as soon as
the power at the input mixer exceeds the specified limit. It ensures that the connection
between RF input and input mixer is cut off.
When the overload protection is activated, an error message is displayed in the status
bar ("INPUT OVLD"), and a message box informs you that the RF input was discon-
nected. Furthermore, a status bit (bit 3) in the
STAT:QUES:POW
status register is set.
In this case, you must decrease the level at the RF input connector and then close the
message box. Then measurement is possible again. Reactivating the RF input is also
possible via the remote command
INPut<ip>:ATTenuation:PROTection:RESet
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Radio Frequency State
Activates input from the "RF Input" connector.
Remote command:
Input Coupling
The RF input of the R&S
FSWP can be coupled by alternating current (AC) or direct
current (DC).
Input source settings