Keysight Technologies N5171B EXG, User Manual

Page: 59 / 473

Keysight EXG and MXG X-Series Signal Generators User’s Guide 43
Basic Operation
Setting Frequency and Power (Amplitude)
Setting Frequency and Power (Amplitude)
Figure 3-1 Frequency and Amplitude Softkeys
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To display the next menu, press More .
For details on each key, use key help
as described on
page 40
.
page 44
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).
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This softkey sets a user determined
maximum power level on the
instrument that is persistent.
Available on vector
models with BBG.
Enables the instrument
to select between two
power levels with a
hardware marker or
using an external BNC.
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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.
Modifies the attenuator and ALC settings
for optimal performance. It does not
change the RF output
power.
Available on
vector models.