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Fig. 4-26 Schematic diagram of tracking mode
3) Generator normalized measurement
The normalized measurement is to subtract the effect of cable loss from the measuring process. It can
reflect the magnitude-frequency characteristics of measured piece more accurately. For example, to test the
magnitude-frequency characteristics of 2.3GHz~2.4GHz band-pass filter, it is allowed to conduct the
following procedures:
a) Press [Freq]→[Start Freq], to set the start frequency as 2.1GHz;
b) Press [Freq]→[Stop Freq], to set the stop frequency as 2.6GHz;
c) Press [Freq]→[Generator]→[Generator Off On], to start the source switch;
d) Press [Measure]→[Generator]→[Mode CW Track], to change the signal source mode to tracking
mode;
e) Connect the cable to signal source RF output end and frequency spectrum input end, and press
[Measure]→[Generator]→[Trans Meas]→[Normalize Off On], to start the normalization switch;
f) After the scanning is completed, it is allowed to add the filter of measured piece and directly observe
the magnitude-frequency characteristics of measured piece.
The magnitude-frequency characteristics diagram of 2.3GHz - 2.4GHz band-pass filter is as shown in Fig.