HP EPM E4419A, EPM-442A manual 65

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 2-3 and Figure 2-4 display the effects of the channel and display offsets on the power meter’s displayed reading.

Figure 2-3: Effect of Offsets on a Channel Measurement

Ch Input		Ch Input with		Ch Input with Ch Offset and	READING
	Ch	Ch Offset	Display	Display Offset
					ON POWER
	Offset †		Offset ††		METER
					DISPLAY

Figure 2-4: Effect of Offsets on a Maths Measurement

ChA Input

ChA Input with Ch Offset

ChAOffset †

Result with

READING

Result

Display Offset Applied

Math, A, B, A-B,

Display

ON POWER

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

Offset ††

METER

DISPLAY

ChBOffset †

ChB Input

ChB Input with Ch Offset

† Channel Offset entered using

System

,

or

A Input Settings

Inputs

.

,

,

B Input Settings

More

Offset

†† Display Offset entered using

Rel

,

.

Offset

Offset

HP EPM-442A User’s Guide 2-27