User’s Manual UTS1000B/T Series
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cursor. In zero span mode, the default reading method is “Time”.
Inverse Time: When this type of reading is selected, it shows the reciprocal of the sweep time
difference between the difference cursor and reference cursor. When the time difference is zero, then
the reciprocal will be infinite and the reading show as “---”.
2. X-Axis Scale (Man/Auto): When X-axis scale is automatic, the sweep span is in zero span mode, and
marker reading will change to “Time” automatically.
3. Lines (Off/On): turn on/off the mark line.
When the mark line is turned on, the crossover line is displayed at the amplitude point indicated by the
cursor, and the width of the horizontal line and the height of the vertical line are consistent with the
length and height of the grid in the waveform display area.
If the cursor is not in the visible area, then extend the mark line to the display area. This function is useful
for cursors outside the display area, the cursor extension line indicates the amplitude of the cursor, for
observing the comparison.
Marker Function: Mark noise, power in-band and density in-band, N dB bandwidth point and frequency
meter, frequency meter thresholds.
1. Mark Noise: Performing mark noise for the selected cursor, and then reads the normalized noise power
density value at the cursor.
If the current selected cursor is off in the Marker menu, press "Mark Noise" is automatically turned on to
the "Normal" type. Then measuring the average noise level of frequency point at the cursor and
normalized to the 1Hz bandwidth. Meanwhile, compensating for different detection methods and trace
types. When using "RMS average" or "sampling" method, the noise cursor measurement is more accurate.
2. Band Power: In non-zero span mode, calculating the total power of the signal in a certain bandwidth. In
zero span mode, calculating the average power in a certain time range.
3. Band Density: In non-zero span mode, the density in-band is the total power in the bandwidth to be
measured divided by the measurement bandwidth. In zero span mode, the density in-band is the
measured power in-band divided by Bn (Bn refers to the noise bandwidth of the RBW filter).
4. N dB
（
on /off
）
: Turn on the N dB bandwidth measurement function, or set the value of N dB. N dB
bandwidth refers to the frequency difference between two points where the current cursor frequency
point is down (N<0) or up (N>0) of N dB amplitude to the left and right. User can change the value of N by
using the numeric key, rotary knob, direction key or touch panel menu.
5. Counter
（
on/off
）
: Turn on the frequency counting function of the cursor. The cursor displays the precise
frequency of the frequency point with the maximum energy. Enable the frequency meter will affect the
scanning speed.
6. Counter Gate: Set the count time of the frequency meter.
