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10 Code Domain
The code domain measurement displays the power for each of the de-spreaded channels, relative to the
total power within the 1.230 MHz channel bandwidth centered at the center frequency. Each de-spreaded
channel level is displayed as an individual vertical bar with a different width determined by a spread rate.
This allows a comparison of signal levels between the Pilot and Traffic channels.
If Device is set as MS, the demodulated I and Q signals are individually shown in the code domain
power graph window. Depending on the test equipment for MS, it is recommended that you use the
trigger output signal from the instrument for synchronization.
Measurement Results
This measures the power levels of the spread channels in RF channel(s). You must be in the cdma2000 to
use these commands. Use INSTrument:SELect to set the mode.
The general functionality of CONFigure, FETCh, MEASure, and READ are described at the beginning
of this section. See the SENSe:CDPower commands for more measurement related commands.
:CONFigure:CDPower
:INITiate:CDPower
:FETCh:CDPower[n]?
:READ:CDPower[n]?
:MEASure:CDPower[n]?
Key Path Front-panel key
Index: n Results Returned
0 Returns unprocessed I/Q trace data, as a series of comma-separated trace points, in volts. The I
values are listed first in each pair, using the 0 through even-indexed values. The Q values are
the odd-indexed values.