Rohde & Schwarz SMB 100a - Error Messages; Introduction - Status Information and Messages; Status Information

R&S SMB Introduction - Status Information and Messages
1407.0806.32 9.1 E-2
9 Error Messages
Introduction - Status Information and Messages
This chapter describes the error messages of the signal generator. The error messages are output in
the Info line on the screen and entered in the error error/event queue of the status reporting system.
A great variety of different messages such as status messages, error messages, warnings or
information are displayed in the header field of the screen. Some error messages require that the error
must be eliminated before correct instrument operation can be ensured. The info window with a list of
current messages and a detailed description of each message can be opened with the
INFO key
In the remote control mode, error messages are entered in the error/event queue of the status reporting
system and can be queried with the command SYSTem:ERRor?. If the error queue is empty, 0 ("No
error") is returned.
Status Information
The status messages are displayed in the header section of the screen. The status information gives
the user an overview of the main operating states and settings of the signal generator. The states are
indicated for information only and do not necessitate any action by the user. Status information is
displayed between the frequency and level fields, at the left of the info line or in the info line itself.
Status information displayed between the frequency and level fields:
RF OFF
The RF output is switched off
MOD OFF
All modulations are switched off.
FREQ OFFSET
A frequency offset is set.
The frequency entered and displayed in the frequency field takes any set frequency
offset into consideration, e.g. an offset set for a downstream instrument. This
means that with a frequency offset the frequency displayed in the header does not
correspond to the frequency at the RF output, but rather to the frequency at the
output of the downstream instrument.
This allows the desired frequency at the output of a downstream instrument to be
entered in the frequency field. The signal generator changes the RF output
frequency according to the entered offset.
However, the frequency entered and displayed in the Frequency/Phase menu of
the RF/Ana Mod function block always corresponds to the RF output frequency.
Any frequency offset is not taken into consideration.
The correlation is as follows:
Freq in header = RF output frequency (= Freq in menu) + Freq offset (= Offset
in menu)