User's Manual

RX FER Acceptance Test

PRELIMINARY

1X SCt4812ET Lite BTS Optimization/ATP

08/01/2001

4-18

Background

This test verifies the BTS Frame Erasure Rate (FER) on all TCHs

currently configured on all equipped MCCs (fullrate at 1% FER) at –119

dBm on the main RX antenna paths. The test is performed on all

diversity RX antenna path using only the lowest equipped MCC/CE. All

tests are performed using the external calibrated test set as the signal

source controlled by the same command. All measurements are via the

LMF.

Pilot gain will be set to 262 for each TX antenna, and the forward link

for all TCH elements from the MCCs will be disabled. The BBX2 will

be keyed up using only

bbxlvl level offsets, to generate a CDMA

carrier (with pilot channel element only). TX power output is set at +10

dBm. (The BBX must be keyed in order to enable the RX receive

circuitry.)

The LMF will prompt the MCC/CE under test to measure all–zero

longcode and provide the Frame Erasure Rate (FER) report on the

selected active MCC on the Reverse Link for both the main and diversity

RX antenna paths, verifying results meet the following specification:

FER returned less than 1% and Total Frames measured is 1500.

The BBX2 will then dekey, and if selected, the redundant BBX2 will be

assigned to the current RX antenna paths under test. The test will then be

repeated.