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less than -40dBm.
4 Bandwidth menu
· [IF bandwidth] Press [BW]→ [IFBW] and set the IFBW with
the number keys on the front panel. Select the corresponding
frequency unit, i.e. [GHz], [MHz], [kHz] or [Hz], or set
the IFBW with the [↑] or [↓] key or knob.
· [Special note]: The IF bandwidth should be more than the
bandwidth of the modulated signal so as to accurately
demodulate the signal. You can observe the bandwidth of the
modulated signal in the RF spectrum. Noise may be generated
in the case of too large IF bandwidth, which will affect the
accuracy of parameter measurement. The IF bandwidth range
is from 10kHz to 300kHz, with the step of 1-3-10.
· [Average Off
On]: Press [BW]→[Average Off On]. The
averaging function is used for smoothing the displayed trace.
When the averaging function is enabled, the averaging frequency
can be selected with the number keys or [↑] or [↓] key or knob.