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Trace/Detector
The normalize function is most useful for applying correction data to a trace while making a
stimulus-response measurement with a tracking generator (or synchronized source). For example,
connect the cables and a through line, in place of the device to be measured, between the tracking
generator and the test set input. Notice that the frequency response is not perfectly flat, showing the
response of the cables, as well as the flatness of both the tracking generator and the test set. Now press
Store Ref (1 3), Normalize On. Notice that the displayed trace is now flat, or normalized. The position of
the normalized trace can now be moved to a different position on the display by changing the normalized
reference position. This may be useful if the device to be tested has positive gain, such as an amplifier.
Now replace the through line with the device under test, and an accurate measurement of the gain or loss
can be made.
Store Ref (1 -> 3)
Copies trace 1 into trace 3. Store Ref (1 3) must be pressed before pressing Normalize (On). Note that
this puts Trace 3 in Update = Off (not updating) and Display = On (visible).
Show Ref Trace (Trace 3)
Views or blanks the reference trace on the display. The reference trace is trace 3, so this is the same as
setting Trace 3’s “Display” attribute.
Key Path Trace/Detector, Normalize
Notes There is no remote command for this function, however the trace copy
command can be used for this purpose.
Dependencies • If Normalize (On) is pressed before Store Ref (1 3), an error message is
generated. Normalize remains off in this case.
Initial S/W Revision Prior to A.02.00
Key Path
Trace/Detector, Normalize
Example TRAC3:DISP 1 shows the reference trace.
Notes Use the TRAC3:DISP command to show or blank the reference trace
Trace 3 is always the reference trace by definition.
State Saved Saved in instrument state.
Initial S/W Revision Prior to A.02.00
Detector
Normalized Trace
(Trace 3)
SENSe
Trace
D
- Trace3
Trace Display
Processing
Trace1
Trace1 for display
Trace from Detector =
Trace
D
Normalized
reference Level
Note does not update if
Update=Off
Data returned from a
marker or a query
Normalized
Reference Position