124 N9310A User’s Guide
6 Subsystem Command Reference
AM Source
:AM:SOURce INT|EXT|INT+EXT
:AM:SOURce?
This command sets the AM source to one of the three
choices: internal source, external source or combined
internal and external source.
The query returns the current AM source.
AM External Coupling
:AM:EXTCoupling AC|DC
:AM:EXTCoupling?
This command sets the coupling for the external AM source.
The choice is either AC or DC coupling. AC coupling passes
only AC signal components. DC coupling passes both the AC
and DC signal components. This command is effective only
when an external AM source is connected and enabled.
The query returns the current external coupling state.
Range INT, EXT, INT+EXT
*RST value INT
Returned data INT, EXT, INT+EXT
Front panel access AM > AM Source
Range AC, DC
*RST value AC
Returned data AC, DC
Front panel access AM > EXT Coupling