User`s guide
Table Of Contents
- Legal Information
- Equipment Operation
- General Safety Considerations
- Regulatory Information
- List of Related Publications
- Agilent TechnologiesE4418B Options
- About this Guide
- Getting Started
- Power Meter Operation
- Introduction
- Battery Operation (Option 001)
- Zeroing and Calibrating the Power Meter
- Making Measurements with the AgilentE-Series Power Sensors
- Making Measurements with the Agilent8480 Series Power Sensors
- Making Measurements using Sensor Calibration Tables
- Making Measurements using Frequency Dependent Offset Tables
- Setting the Units of Measurement
- Selecting Units of Measurement from the Softkeys
- Making Relative Measurements
- Setting the Resolution
- Setting Offsets
- Setting Averaging
- Measuring Pulsed Signals
- Setting Measurement Limits
- Selecting a Digital or Analog Display
- Setting the Range
- Configuring the Remote Interface
- Recorder Output
- Saving and Recalling Power Meter Configurations
- How Measurements are Calculated
- Presetting the Power Meter
- Self Test
- Operator Maintenance
- Contacting Agilent Technologies
- Menu Reference
- Error Messages
- Specifications
Power Meter Operation
Making Relative Measurements
2-34 Agilent E4418B User’s Guide
Making Relative Measurements
Relative mode allows you to compare any measurement result to a
reference value. The relative reading can be displayed in either dB or % by
pressing and selecting either or . When the measurement
result is displayed in % a prefix multiplier may be shown.
Relative mode is window dependent and when enabled displays “Rel” in
the window to which it’s applied.
Procedure
To set a reference value on the currently selected window:
1. Press .
2. Press to use the current reading as the reference value. This
allows you to compare any measurement result in dB or
percentage (%).
3. is automatically set to “On” when is pressed.
Successive measurements are now displayed relative to the reference
value. The relative mode can be disabled and re-enabled simply by
pressing .
dBm/W
dB %
Rel
Offset
Rel
Rel Off On Rel
Rel Off On
HP4402.book Page 34 Wednesday, November 29, 2000 4:46 PM