ROSCillator Subsystem
l ON: the instrument preferentially selects a 10 MHz signal from the rear-panel 10 MHz In connector.
l OFF: the instrument selects the reference oscillator based on the ROSC:SOURce setting.
ROSCillator:SOURce:CURRent?
Indicates which reference oscillator signal is currently in use when ROSC:SOURce:AUTO is ON.
Parameter Typical Return
(none) INT (internal) or EXT (10 MHz connector on rear panel)
Determine reference signal source:
ROSC:SOUR:CURR?
l INT refers to the basic internal TCXO or the optional ovenized OCXO oscillator, whichever is installed.
282 Agilent 33500 Series Operating and Service Guide
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