Preparing to Make W-CDMA or W-CDMA (with HSDPA) Tx Analyzer Measurements

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The first step in measuring W-CDMA transmitter performance (with or without HSDPA) is to take the base station out of service. In-service measurements are also possible, as long as you either use an external coupler, or you use a test port as described in the note above. The next step is to choose the type of time reference available. The measurement configuration depends upon the type of time reference you choose. If you use GPS as your time reference, you can also use it to verify the frequency independently.
You must know the channel or carrier frequency of the transmitter to be analyzed. Additionally, each base station sector has a unique scrambling code that is transmitted to mobiles in that sector. These scrambling codes can be detected automatically by the test set, or can be entered manually if desired.