User manual

4-18 N9360A Multi UE Tester GSM User Manual
4 Operating Procedures
LossRfIn = Setting value at the LOSS/RF In field on the [Configuration]
screen.
3 Actual Output Level and Correction for RF Test in Automatic Test
Output signal level of the Tester is corrected according to cable loss,
coupling loss, and etc. Some of parameters should be set properly.
Actual output level (for downlink signal) at the RF IN/OUT connector
for RF test in the Automatic Test mode is calculated by the following
equation.
Where,
OutputLevel = Actual output level at the RF IN/OUT connector.
BsLevel = Setting value at the BS Level, BER BS Level and BLER BS
Level field on the [Configuration: Test Condition] screen.
LossRfOut = Setting value at the LOSS/RF Out field on the
[Configuration] screen.
AttOut = Setting value at the ATT Out field on the [Configuration: Test
Sequence] screen.
There are two restrictions. The OutputLevel cannot exceed –20.0 dBm,
so each parameter, the BsLevel, the LossRfOut and the ATT Out, must
be set to meet this restriction. The other restriction is that the sum of
the LossRfOut and the ATT Out must be set more than or equal to 0.
4 Actual Input Signal Level and Correction for RF Test in Automatic
Tes t
Input signal level of the Tester is corrected according to cable loss,
coupling loss, and etc. Some of parameters should be set properly.
The measurement results of RF test in the Automatic Test mode are
corrected by the following equation.
Where,
InputLevel = Corrected measured value of the Tester.
MsLevel = Input signal level of the mobile phone at the RF IN/OUT
connector.
OutputLevel BsLevel LossRFOut AttOut++=
InputLevel MsLevel LossRFIn AttIn++=