CDMA Measurements - Screens and Control Fields

Control Fields for CDMA Measurements

Walsh Chan

This field selects the Walsh channel to which to move the marker (IS-95 only mode). The marker can be moved by either entering the Walsh channel number using the keypad, or by using the cursor-control knob.

Screens on which this field is present

COD DOM (Code Domain Analyzer, IS-95 only): marker controls menu

Walsh Order

This selectable IS-2000 Code Domain display field shows the Walsh order of the currently selected channel. The Walsh order represents the number of bits used to specify a selected channel (which also determines channel size). Walsh order 7 (the highest order), will generate a set of 128 distinct values, or channels of size 1. Walsh order 3, comprised of code values of 3 bits each, will generate 8 distinct values of channel size 16. The Walsh order (or channel size) indicates how many channels are used to generate the signal. The lower the Wash order, the larger number of channels are used to generate the signal. A lower Walsh order, while using up bandwidth, can accommodate a larger amount of data, resulting in a higher data rate.

Lower Walsh orders are usually reserved for data transmission, while higher Walsh orders are used for voice transmissions.

Screens on which this field is present

CODE DOM (Code Domain Analyzer, IS-2000 only): Complex Power measurement.

Chapter 5

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Agilent Technologies 8935 series e6380a manual Walsh Chan, Walsh Order