Keysight Technologies N9340B, User Manual

Page: 88 / 172

Key Reference

Amplitude
82
Amplitude
Key access:
[AMPTD]
Activates the reference level function and access the
associated softkeys to set functions that affect the way
data on the vertical axis is displayed or corrected.
Ref level
Key access:
[AMPTD] > {Ref level}
Activates the reference level function.
The reference level is the amplitude power or voltage
represented by the top graticule on the display.
Changing the value of the reference level changes the
absolute amplitude level (in the selected amplitude
units) of the top graticule line. To change the reference
level, use the arrow keys, the knob, or the numeric
keypad. Pressing any digit (0 through 9) on the numeric
keypad brings up the terminator menu.
Attenuation
Key access:
[AMPTD] > {Attenuation}
Toggles the input attenuation between
Auto
or
Man
.
The input attenuation ranges from 1 dB to 51 dB and
allows you to set the attenuation level in 1 dB
increments when attenuation is set to
Man
.
The input attenuator, normally coupled to the reference
level control, reduces the power level of the analyzer
input signal at the input mixer. The attenuator is
recoupled when attenuation is set to
Auto
.
CAU-
CAUTION
To prevent damage to the input mixer, do not exceed a power
level of +33 dBm at the input. A granted power level for stable
sensitive measurement is less than 20dBm.