设备使用说明书
第
8
页 共
23
页
Figure 8.2 – Menu for setting scan parameters
8.2.2. Each of the options in the
Frequency
menu has its own purpose:
Center
– setting the center frequency of the scan range.
Span
– scanning band (range) of frequencies.
Start
– setting the initial frequency of the scanned frequency range.
Stop
– setting the final frequency of the scanned frequency range.
BW
– choice of bandwidth of the digital filter of the intermediate frequency (IF).
Points
– select the number of scan points.
8.2.3. Setting the frequency parameters (
Center
,
Span
,
Start
and
Stop
) is done by entering a numerical value
in the opened submenu, as in Figure 8.3. Enter the numerical value of the frequencies and press
or
Enter
. To
delete erroneous or previously entered values, press
×
or
Del
. To refuse to enter a value, click
˂
or
Cancel
.
In our
example, in figure 8.3, the initial frequency of 2200 MHz of the scanned frequency range is set.
Note
– discreteness of frequency parameters is 10 kHz (0.01 MHz). In the case of entering an unacceptable
value, a warning is displayed on the device that the input value is outside the allowable values.
