141
Key Reference
MODE
between the tracking generator and the
analyzer 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 analyzer. 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 thru
line with the device under test, and an
accurate measurement of the gain or loss
can be made.
Norm Ref Lvl Sets the level (in dB) of the normalized
reference.
Norm Ref
Posn
Offsets the displayed trace without affecting
the instrument gain or attenuation settings.
This allows the displayed trace to be moved
without decreasing measurement accuracy.
The normalized reference position is
indicated with a (>) character on the left
side of the display and a (<) character on
the right side of the display.
Ref Trace
View Blank
Allows you to view or blank the reference
trace on the display.
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