Agilent Technologies ESA Series User's/Programmer's Reference page 137

Norm Ref Lvl
Norm Ref Posn
Ref Trace
View BLank
Agilent E4402B, E4403B, E4404B, E4405B, E4407B, and E4408B only.
Tracking Peak
Activates a routine that automatically adjusts fine frequency tracking
to obtain the peak response of the tracking generator on the spectrum
analyzer display. Tracking Peak is performed in the current resolution
bandwidth.
The output frequency of the tracking generator is not exactly matched
to the input frequency of the spectrum analyzer which causes tracking
error. As you narrow the resolution bandwidth (RBW) you may see the
displayed signal level decrease. This is because a frequency offset
means the signal will not be at the center of the analyzer's RBW. The
tracking peak process will minimize this error. It can be done
automatically with
very narrow RBWs, the manual process may be faster.)
Tracking error is more of a problem when using narrow RBWs or
testing a device under test (DUT) with high Q. With a high Q DUT, the
tracking generator signal may need to be connected directly to the input
of the analyzer, rather than through the DUT, while you do the tracking
Chapter 2
response of the cables, as well as the flatness of both
the tracking generator and the analyzer.
Store Ref (1 → 3)
Now press
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.
Key Access: ,
Source More
Sets the level (in dB) of the normalized reference.
Key Access: ,
Source More
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.
Key Access: ,
Source More
Allows you to view or blank the reference trace on the
display.
Key Access: ,
Source More
or manually with
Tracking Peak
Front-Panel Key Reference
, . Notice that
Normalize On
,
Normalize
,
Normalize
,
Normalize
,
Normalize
Man Track Adj
Source
. (With
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