Agilent Technologies E7401A User Manual

182 Chapter 2
Front-Panel Key Reference
Source
The output power of the tracking generator is swept according to the
sweep rate of the analyzer. The output power is always swept from the
source power setting to a higher power setting (negative source power
sweep values are not allowed).
Power-sweep measurements are particularly useful in making gain
compression measurements or output power versus frequency
measurements.
Key Access:
Source
Attenuation
Auto Man
Allows you to select between automatic and manual adjustment of the
tracking generator’s output attenuator. The Agilent E7401A can be
manually adjusted from 0 to 60 dB in 10 dB steps. All other Agilent
EMC analyzers can be manually adjusted from 0 to 56 dB in 8 dB steps.
When auto-coupled, the attenuation function automatically adjusts the
attenuator to yield the source amplitude level specified by the
Amplitude
On Off
softkey function. For the Agilent E7401A, press Attenuation (Man)
for power sweeps greater than 10 dB.
Key Access:
Source
CAUTION When the source attenuation is set manually, the actual source
amplitude may be greater than the amplitude indicated by the source
amplitude. With source attenuation set to manual, source amplitude is
permitted to be set to values beyond output levels to accommodate the
full range of the analyzer capabilities. As a result, exercise caution
when connecting a power-level sensitive device to the tracking
generator output
Amptd Step
Auto Man
Allows you to set the step size of the power level range of the tracking
generator. The default setting is one vertical scale division when in a
logarithmic amplitude scale.
Key Access:
Source
Amptd Offset
Offsets the displayed power of the tracking generator. Using the
amplitude offset capability of the tracking generator allows you to take
system losses or gains into account, thereby displaying the actual power
delivered to the device under test.
Key Access:
Source
Normalize
Key Access: Source
Store Ref
(1→ 3)
. Copies trace 1 into trace 3. Store Ref (1→ 3) must be
pressed before pressing
Normalize (On). If Normalize (On)
is pressed before
Store Ref (1→ 3), the error message:
Store reference trace before turning on
Normalize is displayed in the status line, however
Normalize has been activated.

Agilent Technologies E7401A Specifications

General

Brand	Agilent Technologies
Model	E7401A
Category	Measuring Instruments
Language	English