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Start and End frequencies
The START and End frequency can be entered in the same manner as the center
frequency entry using the assigned soft keys, numeric keys and MHz key. The dial knob is
not valid for the entry.
[Note]
The CF = MF principle
In the spectrum analyzer mode and the step resolution mode,
Main frequency = Center frequency
When the center frequency is altered using the numeric keys or the dial knob, the main
frequency is changed accordingly. The center frequency becomes the main frequency.
Step bandwidth
In the spectrum analyzer mode, the bandwidth value per step is not displayed on the
LCD.
Displayed frequency span (MHz) is obtained by the following formula:
CF +/- (frequency span / 2)
In the above example, the center frequency is 84.0 MHz. Therefore, the display
frequency span is 84 +/- (10 /2) = 84 MHz +/- 5 MHz.
6-2-2 Step resolution mode
The plot below shows the following signal data:
Center frequency (CF) : 122.50 MHz
Step bandwidth:
Start frequency :
End frequency:
Frequency span:
The frequency span value is automatically calculated by the display step. However, it
does not appear on the screen.
In this example, the chosen step is 25 KHz, the frequency span is
25 KHz x 320 = 8 MHz.
25.0 KHz
118.5 MHz
126.5 MHz
8 MHz
23
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