Find the frequency range of a generator via remote instruction

Question

The signal generator come in different frequency ranges

Using a program is there a way to tell the frequency range of the SMB100A for example?

Answer

Indeed the Rohde & Schwarz generator can be equipped with different modules to the accommodate the application.
Since the module used may also influence the level range available as well as the frequency range
please use the instruction
*OPT?
Option identification query
Queries the options included in the instrument.

An example answer can be:
Since the module used may also influence the level range available as well as the frequency range

3: Write Operation (*OPT?\n)
Return Count: 6 bytes

4: Read Operation
Return Count: 1024 bytes
SMW-B9,SMW-B13XT,SMW-B22,SMW-B90,SMW-B106, ...

The options for the frequency range are

R&S®SMB-B101 9 kHz to 1.1 GHz
R&S®SMB-B102 9 kHz to 2.2 GHz
R&S®SMB-B103 9 kHz to 3.2 GHz
R&S®SMB-B106 9 kHz to 6 GHz
R&S®SMB-B112, R&S®SMB-B112L 100 kHz to 12.75 GHz
R&S®SMB-B120, R&S®SMB-B120L 100 kHz to 20 GHz
R&S®SMB-B131 100 kHz to 31.8 GHz
R&S®SMB-B140, R&S®SMB-B140L,R&S®SMB-B140N 100 kHz to 40 GHz

All options are listed in the corresponding data sheet