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Making Measurements
Making the Power vs. Time Measurement
Changing the Measurement Setup
Making Measurements
Table 4-1
Power vs. Time Measurement Defaults
Measurement Parameter
Factory Default Condition
Avg Bursts
10 Off
Avg Mode
Exp
Avg Type
Pwr Avg (RMS)
Meas Time
1 Slot
Trig Source
RF Burst (Wideband)
Burst Sync
Training Seq
Advanced
NOTE
RBW Filter
Gaussian
Res BW
500.000 kHz
Parameters that are under the Advanced key seldom need to be
changed. Any changes from the default values may result in invalid
measurement data.
Make sure the Power vs. Time measurement is selected under the
Measure menu. The Meas Setup key will access a menu which allows you
to modify the averaging, trigger source, and burst sync for this
measurement (as described in the “Measurement Setup” section at the
beginning of this chapter). In addition, the following power vs. time
measurement parameters can be modified:
• Meas Time - allows you to measure more than one timeslot. Enter a
value in integer increments of “slots” with a range of 1 to 50. The
actual measure time in µs is set somewhat longer than the specified
number of slots in order to view the complete burst.
• Advanced - accesses a menu to change the following parameters:
RBW Filter - Choose the type of filter, either Gaussian or Flat
(Flatop). Gaussian is the best choice when looking at the overall
burst or the rising and falling edges, as it has excellent pulse
response. If you want to precisely examine just the useful part of
the burst, choose Flat.
Res BW - sets the resolution bandwidth.
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Chapter 4