4 Operation Guide
4.1 Function operation guide
31
Fig. 4.1 Fixed Frequency Receiving Mode
Step 2:
Set the frequency spectrum measurement channel parameters, including center frequency,
bandwidth and resolution bandwidth (adaptive).
a) Press [Center] number display area in the intermediate frequency spectrum window to pop up the
numeric keyboard input area, enter the center frequency value with number keys, and select the
frequency unit according to the corresponding unit area (or use a single finger to slide left and right
in intermediate frequency spectrum window to modify the center frequency).
b) Press [Bandwidth] number display area in the intermediate frequency spectrum window to select the
bandwidth.
c) Press [Resolution] number display area in the intermediate frequency spectrum window to select
the corresponding resolution bandwidth. If there is no special demand, select [Auto], and the
resolution bandwidth is adaptive bandwidth under this option.
Demodulation frequency and center frequency can be set independently, but they must be within the
same IF bandwidth. When the center frequency is changed, the demodulation frequency follows the
center frequency by default.
4.1.1.2 Audio demodulation
Step 1.
After the setup according to
, set the level measurement channel parameters, including
the detection mode and demodulation bandwidth:
a) Press [Detection Mode] area to pop up the drop-down box for selecting detection mode, including
maximum peak value, mean value, power and sampling.
b) Press [Demodulation Bandwidth] area to pop up the demodulation bandwidth drop-down box to
select the level and demodulation channel bandwidth.
Step 2.
Set demodulation channel parameters, including demodulation mode and squelch level.
a) Press [Demodulation Mode] area to pop up the demodulation mode drop-down box and select the
appropriate demodulation mode.
Note
