Interpreting the Display
The CDMA Over Air screen is divided into three sections: the code domain trace display, strongest pilot trace display, and metrics display.
The code domain trace display contains 128 Walsh codes, which are shown in a bit-reversed order to represent the combined code channels for the varying data rate traffic channels. The Y-axis labels display the relative power (dB) or absolute power (dBm), threshold level, and dB/division. The X-axis labels display active channel Walsh Code numbers. Active code channels shown on the display include:
The strongest pilot trace display contains the pilot dominance and multipath power parameters. Awareness of these two parameter values helps you be sure that you are making valid measurements on the sector of interest.
- Pilot (red)
- Page (green)
- Sync (blue)
- Quick page (light blue)
- IS-95 traffic (yellow)
- cdma2000 traffic (orange)
- Unknown traffic (tan)
- Noise (light gray)
The metrics display shows 18 measurement parameters displayed below the trace display in three columns and six rows-each with a value and units. For more information about the metric display, refer to "Metrics Provided by CDMA Over Air Measurements"
The frequency indicator is at the bottom right corner of the screen, the time reference indicator at the bottom left. For each indicator the text indicates which reference you have chosen. A green LED indicates a locked condition. A red "X" indicates an unlocked condition.