Power Meter Operation

Setting Offsets

2.The power meter displays the offset value in a pop up window. Modify this offset (see below) as desired.

Use or to modify the digit on which the cursor is currently positioned.

Use or to move to other digits.

3.To confirm your choice press dB .

4.Offset Off On is automatically set to “On” when a value is entered using Offset .

Display offsets can be disabled and re-enabled simply by pressing Offset Off On .

The display offset is a function of the window. That is, if you have selected a two window display each can have its own offset.

Figure 2-8 and Figure 2-9 display the effects of the channel and display offsets on the power meter’s displayed reading.

Figure 2-8: Effect of Offsets on a Channel Measurement

Ch Input

Ch

Offset

Ch Input with

Ch Offset

Display Offset ††

Ch Input with Ch Offset and Display Offset

READING ON POWER METER DISPLAY

Figure 2-9: Effect of Offsets on a Maths Measurement

ChA Input

ChAOffset

ChB Input ChBOffset

 

ChA Input with Ch Offset

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Result

 

 

 

 

 

 

Math, A, B, A-B,

Display

 

 

 

 

 

 

 

 

 

 

B-A, A/B, B/A,

 

Offset ††

 

 

 

 

 

 

 

 

 

ChB Input with Ch Offset

 

Result with

Display Offset Applied

READING ON POWER METER DISPLAY

† Channel Offset entered using System , A Input Settings or Inputs

B Input Settings , Offset.

†† Display Offset entered using

Rel

,

 

.

Offset

Offset

 

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HP E4419B User’s Guide

Page 80
Image 80
HP Saw E4419B manual Effect of Offsets on a Channel Measurement