Keysight WLAN Measurement Guide 33
Making WLAN Measurements
Making Power Stat CCDF Measurements
Step
Action
Notes
1.
Select WLAN Mode.
a. Press
MODE
,
WLAN
.
2.
Select the desired radio
standard.
a. Press
MODE Setup
,
Radio Std
,
802.11a/b/g
,
802.11a/g
.
3.
If necessary, select the
frequency settings.
a. Press
FREQ Channel
,
5.18
,
MHz
.
4.
Select the measurement.
a. Press
MEAS
,
Power vs Time
.
5.
Select trigger and zoom in on
the first burst.
a. Press
Trigger
,
External 1
.
6.
Set a marker and set a delta
marker to measure the burst
length.
a. Press
Marker
,
Select Marker
,
Marker
1
.
Use the knob to place the marker at the
rising edge of the burst.
b. Use the knob to place the marker at the
rising edge of the burst.
c. Press
Delta
and use the knob to place the
marker at the falling edge of the burst.
d. Read the delta marker value, for example,
180 µs.
7.
Turn off the Trig Delay.
a. Press
Trigger, External 1
,
Trig Delay
and switch to
Off
.
8.
Set a marker to measure the
hardware delay.
a. Press
Marker
,
More
,
All Markers Off
.
b. Press
Marker
,
Select Marker
,
Marker
1
.
Use the knob to place the marker at the
rising edge of the burst.
c. Read the marker value, for example, 25
µs.
9.
Select the Power Stat CCDF
measurement.
a. Press
Meas, Power Stat CCDF
.
10.
Set the Trig Delay that
includes hardware delay
time plus training symbols.
a. Press
Trigger, External 1
,
Trig Delay
and enter the trigger delay (25 + 16 = 41
µs).
11.
Restart the Power Stat CCDF
measurement.
a. Press
Restart
.
To measure the burst length, you can also use IQ Waveform measurement.