Anritsu MT8850A, Руководство по эксплуатации, Страница: 110 / 156

MT8850A / MT8852A Bluetooth Test Set Using the Script Menu
8-50 13000-000109
Viewing Test Results January 2003
Modulation Index Test Results
1. Choose “Modulation index” from the Script menu.
2. Press the [Results] soft key.
The Output power results screen is displayed.
F1avg: MT8850A/MT8852A measures the maximum deviation for the second, third,
sixth and seventh bit of each 11110000 payload byte. It then calculates the
average value of all these deviations for each packet. This value is recorded as
F1avg for each packet. The displayed value on the MT8850A/MT8852A is the
highest F1avg value of all the packets that have been measured.
F2avg: MT8850A/MT8852A measures the maximum deviation of each 10101010 bit in
the payload. The average of all these maximum deviations is then calculated
and recorded as F2avg.
F2max: MT8850A/MT8852A measures the maximum deviation of each 10101010 bit in
the payload. Each of these values is recorded as an F2max value. The
displayed value of F2max is the single bit measured in a test that has the lowest
recorded deviation. The percentage of F2max values that are greater than the
limit of 115kHz is also displayed. The pass/fail criteria is made relative to the
percentage value passed, and should exceed 99.9%.
Note: If any pattern errors are found in either the 11110000 or 10101010 payload,
then these packets are discarded for measurement purposes.
3. Press the [Extended] soft key to display more detailed test results. As opposed to
the summary screen shown above, the extended screens are specific to each of the
test scenarios. For example, if a test is performed at high, medium, and low
frequencies, with hopping both on and off, there would be six extended screens. An
example of the first extended screen for the modulation index test is shown below.
4. Page through the extended screens with the soft key in the normal manner, or press
the [Summary] soft key to revert to the initial summary page.