Agilent Technologies 4294A, Руководство по эксплуатации

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128 Chapter 5
Setting Measurement Conditions
Setting Measurement Accuracy, Stability, and Time
Equation 5-2 Point Averaging Algorithm
where:
M = Point averaging result (vector value) at the measurement point
S
n
= Current measurement value (vector value)
F = Point averaging factor (entered with
POINT AVG FACTOR
key)
Perform the averaging factor setup as follows:
Step 1. Press the
[Bw/Avg]
key to display the measurement bandwidth/averaging menu.
Step 2. Press the
POINT AVG FACTOR
key to display the current setting for the point averaging in
the parameter settings located in the upper left area of the screen.
Step 3. Use the keys or rotary knob of the ENTRY block in one of the following ways to specify a
value for the point averaging.
• Enter the desired value with the numeric keys (
[0]
to
[9]
,
[.]
, and
[-]
) and then press the
unit key (
[G/n]
,
[M/
m
]
,
[k/m]
, or
[
´
1]
).
• Turn the rotary knob ( m m m m ) until the desired value is set.
• Press the step keys ([ ­ ][ ¯ ]) to set the desired value.
NOTE The value of point averaging can be set to any natural number from 1 to 256. Setting the
point averaging to 1 is equivalent to turning the averaging OFF.
Step 4. Press the POINT AVG on OFF (or POINT AVG ON off) key to turn the point averaging
ON or OFF (pressing the key toggles your selection).
M
1
F
---
S
n
n 1 =
F
å
=
Softkey label Point averaging
POINT AVG on OFF
Off
POINT AVG ON off
On