Anritsu MT8850A, Руководство по эксплуатации, Страница: 117 / 156

Audio Measurements
(MT8852A only)
MT8850A / MT8852A Bluetooth Test Set
13000-000109 9-5
January 2003 Audio Measurements
Refer to the figure below for details of jack plug wiring.
Testing the Audio Performance of the EUT Receive Path
The performance of the EUT receiver can be tested in isolation with the set-up shown
below.
As a replacement for the external audio IN, it is also possible to use an internally
generated tone. Use of this tone is ideal for quick tests and as it is generated internally, it
does not pass through the MT8852A CODEC. The tone is fixed at 1kHz. For
measurement at other frequencies use of external audio is required.
•
Position the signal generator and analyzer as shown in the diagram below.
Note: Refer to the jack plug diagram on the previous page.
•
Follow the procedure for “Testing the EUTs Audio Performance” but set the “SCO
Loopback” setting to “OFF” (step 8 in the procedure).
•
Set the “SCO tone generator” on page 2 of 3 to “ON” or “OFF” as required.