Agilent Technologies E4428C User Manual

648 Chapter 18
Troubleshooting
Basic Signal Generator Operations
ALC Off Mode
ALC off mode deactivates the automatic leveling circuitry prior to the signal generator’s RF output. In this
mode, a power meter is required to measure the output of the signal generator and assist in achieving the
required output power at the point of detection.
To set the signal generator to the ALC off mode, follow these steps:
1. Press
Preset.
2. Press
Frequency, enter the required frequency, and terminate the entry with the appropriate terminator
softkey.
3. Press
Amplitude, enter the required amplitude, and terminate the entry with the appropriate terminator
softkey.
4. Set
RF On/Off to Off.
5. Press
Amplitude > ALC Off On to Off.
This deactivates the signal generator’s automatic leveling control.
6. Monitor the RF output amplitude as measured by the power meter.
7. Press
Amplitude and adjust the signal generator’s RF output amplitude until the desired power is
measured by the power meter.
Power Search Mode
Power search mode executes a power search routine that temporarily activates the ALC, calibrates the power
of the current RF output, and then disconnects the ALC circuitry.
To set the signal generator to manual fixed power search mode, follow these steps:
1. Press
Preset.
2. Press
Frequency, enter the required frequency, and terminate the entry with the appropriate terminator
softkey.
3. Press
Amplitude, enter the required amplitude, and terminate the entry with the appropriate terminator
softkey.
4. Set
ALC Off On to Off
This deactivates the ALC circuitry.
5. Set
RF On/Off to On.
6. Press
Do Power Search.
This executes the manual fixed power search routine, which is the default mode.

Agilent Technologies E4428C Specifications

General

Brand	Agilent Technologies
Model	E4428C
Category	Inverter
Language	English