Rohde & Schwarz SMB 100a - Page 216

Command Description R&S SMB
1407.0806.32 6.24 E-2
[SOURce:]AM:INTernal:DEPTh 0 ... 50 PCT
This command sets the modulation depth for the two LF generators. The sum of the two values must
not exceed the overall modulation depth set in the upper part of the menu.
Example:
AM:INT 15PCT
'sets the AM modulation depth to 15 percent.
*RST value Resolution Options SCPI
15 PCT See data sheet Compliant
[SOURce:]AM:SENSitivity?
The command queries the input sensitivity of the MOD EXT input in %/V. The command is only effective
if the external modulation source is selected (SOUR:AM:SOUR EXT). The returned value depends on the
modulation depth setting (SOUR:AM:DEPTh). This value is assigned to the voltage value for full
modulation of the input.
The command is a query command and therefore has no *RST value.
Example:
AM:DEPT 50
'sets a modulation depth of 50 %.
AM:SENS?
'queries the input sensitivity at the MOD EXT input.
Response: 50
'since the voltage value for full modulation is 1V, the resulting sensitivity is
precisely 50%/V.
*RST value Resolution Options SCPI
- - Compliant
[SOURce:]AM:SOURce EXT | INT | INT,EXT
The command selects the modulation source for amplitude modulation. INT is the internal
modulation source and is configured in the SOURce:LFOutput subsystem. The external signal is
input at the MOD EXT connector. Internal and external modulation source can be selected at the
same time.
Example:
AM:SOUR INT
'selects the internal modulation source.
*RST value Resolution Options SCPI
INTernal - Compliant
[SOURce:]AM:STATe ON | OFF
The command activates/deactivates amplitude modulation.
Example:
AM:STAT ON
'activates AM modulation.
*RST value Resolution Options SCPI
OFF - Compliant