Instrument Function
R&S
®
SMBV100A
357Operating Manual 1176.8016.02 ─ 17
The menu offers only the coding settings that are permissible for the chosen modula-
tion type. The other coding methods are grayed out.
If the system is subsequently switched to a modulation type for which the selected cod-
ing is not available, coding is automatically set to OFF.
Remote command:
[:SOURce<hw>]:BB:DM:CODing on page 668
Modulation
The modulation type is set in the "Modulation section". The parameters offered depend
on what is currently selected. The "More..." button opens a submenu for displaying the
user-defined mapping.
Modulation Type
Selects a modulation type.
The associated symbol mapping is displayed in the "More..." submenu (see Chap-
ter 5.9.3.2, "Modulation Types - Custom Digital Mod", on page 338).
If the "coding" that is set is not possible with the chosen modulation type, "coding" is
set to "Off".
For selection "Variable FSK", the deviation of each symbol can be set in the "More..."
submenu.
Remote command:
[:SOURce<hw>]:BB:DM:FORMat on page 669
Load User Mapping
Selects user defined mapping table. This opens the "Select List File User Mapping"
window in which the mapping table can be selected (see "User Mapping"
on page 342). The button is only available if modulation type "USER" is selected.
The button "File Manager" calls the "File Manager" menu. The "File" "Manager" menu
is used to display and delete files.
Remote command:
[:SOURce<hw>]:BB:DM:MLISt:SELect on page 683
[:SOURce<hw>]:BB:DM:MLISt:CATalog? on page 675
[:SOURce<hw>]:BB:DM:MLISt:DELete on page 682
ASK Depth
Sets the modulation depth m for ASK modulation.
m = (Amplitude
max
-Amplitude
min
) / (Amplitude
max
+Amplitude
min
)
Remote command:
[:SOURce<hw>]:BB:DM:ASK:DEPTh on page 668
FSK Deviation
Sets the frequency deviation for FSK modulation. The range of values depends on the
chosen symbol rate (see data sheet).
Whenever "MSK" is selected, the deviation corresponds to 1/4 of the symbol rate and
cannot be set.
Baseband Signal - Baseband Block
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