User Manual

Adjusting for loss

68P09255A57-2

Aug 2002

SC4812ET Optimization/ATP Manual Software Release R16.1.x.x

PRELIMINARY

3-92

Table 3-50: Set RFDS Configuration Data

Step Action

3c - Enter the desired data.

To edit existing values click in the data box to be changed and change the value.

NOTE

Refer to the CDMA Help > Utility Menu > Edit-RFDS Configuration... section of LMF Help

function on-line documentation for RFDS configuration data examples.

5 To delete a row, click on the row and then click on the Delete Row button.

6 For each tab with changes, click on the Save button to save displayed values.

Click on the Dismiss button to close the window.

NOTE

 Values entered or changed after the Save button was used will be lost when the window is

dismissed.

 Entered values will be used by the LMF as soon as they are saved. It is not necessary to log out and

log back into the LMF for changes to take effect.

RFDS Calibration

The RFDS Calibration option is used to calibrate the RFDS TX and RX

paths.

TX Path Calibration - For a TX antenna path calibration the BTS

XCVR is keyed at a pre-determined power level and the BTS power

output level is measured by the RFDS. The power level is then measured

at the TX antenna directional coupler by the power measuring test

equipment item being used (power meter or analyzer). The difference

(offset) between the power level at the RFDS and the power level at the

TX antenna directional coupler is used as the TX RFDS calibration

offset value.

RX Path Calibration - For an RX antenna path calibration the RFDS is

keyed at a pre-determined power level and the power input level is

measured by the BTS BBX. A CDMA signal at the same power level

measured by the BTS BBX is then injected at the RX antenna directional

coupler by the communications system analyzer. The difference (offset)

between the RFDS-keyed power level and power level measured at the

BTS BBX is the RFDS RX calibration offset value.

RFDS calibration and the CAL file - The TX and RX RFDS

calibration offset values are written to the CAL file in the slot[385]

Block.

TSIC channel frequency - For each RFDS TSIC, the channel

frequency is determined at the lower third and upper third of the

appropriate band using the frequencies listed in Table 3-51.