User Manual

NOTCHCELL 20W OPERATING MANUAL
R-tron America, Inc. Page: 43 / 57
Example 2) Field isolation value is 100. Repeater input value is -65 dBm.
User’s target output is 30dBm.
① Maximum available gain = 100(dB)–15(dB) = 85dB
② Repeater Gain setting :
Repeater Gain(dB) = 30(dBm) – (-65(dBm)) = 95(dB)
Current input level -65dBm. Therefore, when an user is going to use output;
30dBm, repeater gain needs 95dB. Considering maximum repeater
gain;85dB, you can not set 30dBm as repeater output value.
► Note : Taking the above example 2, how to use repeater output as 30dBm.
① Change the direction of donor antenna for better input signal.
(minimum -55dBm)
② Set antennas isolation value as 110.