User`s guide

Agilent N5161A/62A/81A/82A/83A MXG Signal Generators User’s Guide 45
Basic Operation
Setting Frequency and Power (Amplitude)
Setting Frequency and Power (Amplitude)
Figure 3-1 Frequency and Amplitude Softkeys
page 113
To display the next menu, press More.
For details on each key, use key help
as described on page 42.
page 46
Refer to the SCPI Command Reference.
Opens the
Atten/ALC
Control
menu.
Enables the optimize signal-to-noise ratio state (Optimize S/N) On or Off.
The optimize signal–to–noise softkey changes the attenuator and alc setting to provide
optimal signal–to–noise performance; it does not change the RF output power.
Caution: When the optimize signal-to-noise ratio state is enabled, some increased levels of
harmonic distortion can occur. This increased harmonic distortion could degrade ACPR and
EVM.
Note: This mode is mutually exclusive with attenuator hold (Atten Hold), and any modulation
type. A settings conflict error will be generated if attentuator hold or any modulation is
activated when optimize signal–to–noise is active (On).
page 47
This softkey sets a user
determined maximum
power level on the
instrument that is
persistent.
Enables the
User Power
Max softkey.
page 88
In Amplitude mode, this menu is
automatically displayed when entering
a numeric value with the front panel
keypad.
In Frequency mode, this menu is
automatically displayed when entering
a numeric value with the front panel
keypad.
Sets the current relative phase of
the RF output signal as the zero
reference.
All subsequent adjustments are
relative to this adjustment.
dBuVemf terminates
the value as dBuV
electromotive force.
Emf is the output
voltage with no
load. This unit is
external only.
Internal
representation as
well as increment
and decrement
values are in dBm.
Note: dBuV, mV,
and nVemf behave
similarly (i.e. Values
are external only.
Internal
representation as
well as increment
and decrement
values are in dBm.).
Enables the mode to improve
non-harmonics performance
(low spurs mode).
Note: When this mode is
enabled, the instrument switching speed and behavior of
the source’s settled signal are affected.
Hardware dependent—may not be
visible on all instruments. This
feature was activiated with serial
prefix >
xx4818.
Modifies the attenuator and ALC
settings for optimal performance. It
does not change the RF output.