User’s Manual UTS1000B/T Series
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Sweep
（
Single/Cont
）
: Set the sweep mode to single and continuous, the default is continuous. The
corresponding status at the top of the screen corresponding to the selected mode.
Cont: Set sweep mode to continuous sweep, the icon
indicates continuous. The system automatically
sends the trigger initialization signal and enters the trigger condition judgment directly after each sweep.
Single: Set sweep mode to single sweep, the icon
indicates single window. Single backlight lights up
after clicking "Single Window".
If the system is currently in single sweep mode and not in a measurement state, press “single” and perform
the sweep when the trigger condition is met.
If the system is currently in single sweep mode and in the measurement state, press the "single" key and
then perform the sweep and measurement when the trigger conditions are met.
Sweep Mode
（
Auto/Man
）
: Automatic, sweep frequency and FFT mode
1. Auto: The spectrum analyzer automatically selects the sweep mode or FFT mode according to the
current resolution bandwidth, in order to achieve the fastest sweeping speed. When RBW is greater than
or equal to 1kHz, sweep mode is automatically selected; when RBW is less than 1kHz, FFT mode is
automatically selected.
2. Swept: Performed in a point-by-point sweep mode, it is suitable for large RBW.
3. FFT: Performed in parallel sweep mode, it is suitable for small RBW.
When TG is turned on, due to its frequency continuous output characteristics, it will be forced to switch
to sweep mode.
Points: Set the count obtained for each scan, which is the number of points of the current trace. User can
change the point value by using the numeric key or touch panel menu.
1. As the number of sweep points increases, the frequency resolution of the marker point increases, but the
sweep speed decreases along with it.
2. Due to the limitation of interval time of minimum sweep point, the sweep time may become longer when
sweep count increasing.
3. Changing the sweep count will affect several parameters of the system, so the system will be rescanned
and measured.
Demod: Set the demodulation type to "AM" or "FM" or turn off the demodulation function. The default is "Off".
1. When AM (or FM) demodulation is turned on, the system will automatically turn on a cursor, locate it to the
center frequency, and perform AM (or FM) demodulation for that frequency point.
2. The machine is equipped with headphone jack, which can output the demodulation signal in audio mode
through headphone. The audio frequency indicates the frequency of the modulating signal, and the audio
strength indicates the amplitude of the modulating signal.
