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Then choose from the following:
Frequency / Time
How to set Frequency
Press Freq/Dist
Then choose from the following:
How to set Time
Specify the time over which data will be acquired by the USB Power Sensor. When
Trace Graph is selected, Tr 1 is annotated with these values. Time can be specified
using either of the following pairs of values:
Follow each by entering a value using the numeric keypad, the ▲|▼ arrows, or
After using the keypad, select a multiplier key. Learn about multiplier abbreviations
Zoom Window
When Trace Graph is selected as the measurement, a secondary Zoom Trace can be
used to view a zoomed portion of Tr 1. When Zoom Window is ON, blue vertical
posts appear on Tr 1 to indicate the current start, center, and stop times of the zoom
window. The zoom window can be scaled using the standard Scale settings.
Pulse Measurements Mode - Option 330
Average power (Meter display)
Average
o
Peak power (Meter display)
Peak
o
Displays the difference between the above two measurements
Pk to Avg
o
(Meter display)
(default) The primary trace (Tr 1) plots pulse data in amplitude
Trace Graph
o
versus time. Optionally, you can enable a secondary 'zoom' trace. Learn how on
page 93.
When a 'Meter display' measurement is selected, the following Pulse Measurement
Mode settings are identical to the standard USB Power Meter Mode settings.
Learn how to set Scale on page 81.
o
Learn how to set Relative and Offset Power on page 81.
o
Learn how to set Display Units on page 82.
o
Learn how to set Limits on page 83.
o
Sets the center frequency of the carrier on which pulse modulation
Frequency
o
resides. This is used to set amplitude correction of the USB Power Sensor.
and
Center 1
Time/div 1
o
and
Start Time
Time Length
o
A positive start time indicates a delay after the sensor detects a pulse signal.
o
A negative start time displays data that is acquired BEFORE the sensor detects a
o
pulse signal (or T-zero).
the rotary knob.
on page 19.
Specify the center time and time per division.
Specify the start time and length of acquisition.
93
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