HP EPM-441A - Effect of Offsets on a Channel Measurement

HP4402.book : chapter2.fm 25 Tue Apr 22 15:20:23 1997
Power Meter Operation
Setting Offsets
HP EPM-441A User’s Guide 2-25
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 .
4. is automatically set to “On” when a value is
entered using .
Display offsets can be disabled and re-enabled simply by pressing
.
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 displays 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
† Channel Offset entered using , ,,
.
†† Display Offset entered using ,.
dB
Offset Off On
Offset
Offset Off On
Ch Input with
Ch Input
Ch
Offset
†
Display
Offset
††
READING
ON POWER
METER
DISPLAY
Ch Input with Ch Offset and
Ch Offset
Display Offset
System
Inputs
Input Settings
More
Offset
Rel
Offset
Offset