PHASe Subsystem
PHASe Subsystem
The PHASe subsystem allows you to adjust the waveform phase; this is useful in channel-to-channel and channel-to-
Sync applications. This subsystem also allows you to use the 10 MHz Out and 10 MHz In rear-panel connectors to
synchronize multiple instruments.
l PHASe - sets phase offset of output waveform (not available for arbitrary waveforms or noise)
l PHASe:SYNChronize - synchronizes phase of both internal channels on a two-channel instrument.
l PHASe:REFerence - sets new zero-phase reference point without changing instrument output
l PHASe:UNLock:ERRor:STATe - specifies whether instrument generates an error upon losing phase-lock
[SOURce[1|2]:]PHASe {<angle>|MINimum|MAXimum}
[SOURce[1|2]:]PHASe? [{MINimum|MAXimum}]
Sets waveform's phase offset angle.
Parameter Typical Return
-360 to +360 degrees, or -2Ï€ to +2Ï€ radians, as specified by UNIT:ANGLe. Default 0. +1.5000000000000E+01
Set channel 1 phase offset to 30 degrees PHAS 15:
UNIT:ANGL DEG
PHAS 15
l Phase offset is independent of burst phase (BURSt:PHASe).
l This command does not modify channel's primary phase generator; it simply adds phase offset.
l This command also useful for modifying phase relationshipbetween channels in a two-channel instrumentand
between the channel andits sync signal.
l In a two-channel instrument, use PHASe:SYNChronize to synchronize the phases of the two internal channels.
Each channel will retain its current phase offset, but the two channels will have a common reference point so the
channel-to-channel phase difference will be known.
l When synchronizing the phase of multiple instruments (ROSC commands), the phase command allows adjust-
ment of the phase relationship between the instruments.
[SOURce[1|2]:]PHASe:REFerence
Simultaneously removes the offset set by PHASe and adjusts the primary phase generator by an amount equivalent to
the PHASe setting. This retains the phase relationship set with another instrument while realigning the sync signal
with the output.
Parameter Typical Return
(none) (none)
Reset the zero-phase reference point for channel 1:
PHAS:REF
Agilent 33500 Series Operating and Service Guide 265
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