Agilent Technologies E4421B User Manual

Hardkey and Softkey Reference ESG Family Signal Generators
Ampl
4-18 User’s Guide
Power Search
This softkey accesses a menu from which you can change power search
parameters.
Softkey Location:
Ampl > ALC Off On > Power Search
Power Search Manual Auto
This softkey toggles between the auto and manual modes of power
search mode. Power search is an internal calibration routine used to
achieve calibrated output power when the ALC is off. When you set
Power Search Manual Auto to Auto, power search will execute automatically
with each change to the RF frequency or power, and also with each
change to the AM, burst, pulse, or I/Q modulation state. If you are using
external I/Q modulation, the power search routine assumes that the I/Q
input level is = 0.5 V
rms
.
Actual output amplitude will scale directly with .
When you set
Power Search Manual Auto to Manual, the power search
routine is not run until the
Do Power Search softkey is pressed.
The
ALC Off On softkey must be set to Off in order to engage either power
search mode.
Default Value: Manual
Softkey Location:
Ampl > ALC Off On > Power Search Manual Auto
Power Search Reference Fixed Modulated
This softkey toggles between fixed and modulated modes of power
search. Power search is an internal calibration routine used to achieve
calibrated output power when the ALC is off. When you set
Power Search Reference Fixed Modulated to Fixed, power search uses a
0.5 Volt reference. When you set
Power Search Reference Fixed Modulated to
Modulated, the current I/Q modulation remains active and the reference
is the RMS value of the current I/Q modulation.
The
ALC Off On softkey must be set to Off in order to engage either power
search reference.
Default Value: Fixed
Softkey Location:
Ampl > ALC Off On > Power Search >
Power Search Reference Fixed Modulated.
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Agilent Technologies E4421B Specifications

General

Brand	Agilent Technologies
Model	E4421B
Category	Portable Generator
Language	English