27
Where,
VRMS
denotes the mean square root value of voltage, unit is V.
N
denotes the
number of smples assigned for each pixel.
vi
denotes the envelop of the samples, unit
is V.
Reference Resistance
R
can be used for Power calculation:
6. Voltage Avg
Average the data from sampling assigned to pixel and displays the result.
Where,
V
denotes the average of voltage with unit V,
N
denotes the number of
smaples assigned to each pixel.
v I
denotes the envelope of smaples with unit V
。
Sweep
Set the parameters about sweep and trigger, such as Time, Mode, SWT Count and
Trig Type.
Time
Set the time for the analyzer to complete a sweep within span. Either Auto or Maual
can be used, the default is Auto.
Key points:
In non-zero span mode, once you select Auto, the analyzer will choose the shortest
sweep time according to current parameter setting, such as RBW, VBW and so on.
Decreasing sweep time will speed the measurement. But if your specified time is
less than the shortest sweep time in Auto coupling, it will lead to error in
measurement, and “UNCAL” will be shown at the status bar of the screen.
You can modify this parameter by numeric keys, knob and arrow keys.
Table 2-15 Sweep time
*Note: in non-zero mode, minimum is 10 ms.
Mode
Set the sweep mode to Single or Continue, the default is Continue. The icon for
selected mode will be shown at the left status bar of screen.
1. Single
Set the sweep mode to Single and the number 10 in parameter icon shows the
current sweep number.
2. Continue
Set the sweep mode to Continue. The “Cont” in parameter icon denotes the
analyzer is
sweeping continuously.
Parameter
Description
Default
50 ms
Range
*
20 us ~ 1500s (P4130); 2200s (P4135) 3000 s (P4140)
Unit
Ks, s, ms, us
Knob Step
Sweep time/100, Min = 1ms
Arrow Keys Step
In 1-1.5-2-3-5-7.5 sequence
