Agilent Technologies E4419B, Руководство пользователя

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Power Meter Operation 2
E4419B Power Meter User’s Guide 67
If either a channel or a display offset is set, then “
Ofs
” is displayed.
To enter a display offset on the currently selected window:
1
Press , .
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 2-8 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
Figure 2-9
Effect of Offsets on a Maths Measurement
† Channel Offset entered using , , or , .
†† Display Offset entered using
, .
Offset
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
ChA Input with Ch Offset
Math, A, B, A-B,
B-A, A/B, B/A,
ChA Input
ChA
Offset †
ChB Input with Ch Offset ChB Input
ChB
Offset
†
Display
Offset ††
Result with
Display Offset Applied
Result
READING
ON POWER
METER
DISPLAY
A Input Settings B Input Settings Offset
Offset