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52 | EV-DO ATS User Manual
4.4.2.
Group Edit
If you want to set a parameter to the same value in more than one test, you can use the
Group Edit feature. For example, you may want to set Ior to –90 dBm for tests 1 through
20. Group Edit makes setting values in multiple tests easy and convenient.
TestDrive EV-DO allows you to select more than one test at a time. To do this, click and
hold the mouse on the first test you wish to select in the Test grid. Then drag the mouse
pointer to the last test that you wish to select. You can accomplish the same selection by
using the shift key. Click on the first test of the group you wish to select. Hold down the
shift key and click on the last test in the group.
Similarly, you can select tests by holding down the control key and clicking on the
individual tests you wish to edit. The tests selected do not need to be in a contiguous
block when selections are made in this manner.
Once you have your group of tests selected, you can make changes to the test
parameters. If a parameter setting is blank, it means that it is different across the tests in
the group. If you set a parameter, it affects that parameter in every test in the group to
the value you enter. Some parameters may not apply to every test selected. In this case,
the parameter setting only applies to those tests that support that parameter.
4.4.3.
Parameter Sweep
If you want to execute a test repeatedly while a parameter is slowly changed for each
repetition, you can use the Parameter Sweep feature. For example, you can repeatedly
execute a PER test while Ioc is adjusted incrementally for each test. The Parameter
Sweep feature simplifies this task by building a suite of tests based on your criteria.
To use this feature, it is best to start with a new suite. Add a new test as test 1. Select the
test type you wish to perform. Modify the test parameters accordingly. When you are
finished, click on the parameter you wish to increase or decrease. You may only select
one parameter.
With the parameter selected, select Edit>Sweep from the Edit menu, or click on the
broom icon. The Sweep window displays. Enter the start, stop, and increment values
appropriately. TestDrive EV-DO indicates the legal range for the parameter and calculates
the number of tests to be added to the suite.
You can choose to have the Description for each test appended with the parameter
sweep information. This is useful when analyzing the results later. When you click the OK
button, TestDrive EV-DO adds the calculated number of tests to the suite. The
parameters across all tests are identical except the parameter to be swept. Its value
changes for each test appropriately.