Qasim Ali,
This repeater is a great eal to cover deficient points of your network.
Its main purpose is to “repeat” the chennel that already gets in some place with a deficient level. For example, in a location behind a hill, you have a signal of -95dBm, wich can lead your subscribers to drops or fail on access. The repeater will amplify this signal (on both ways) so your subscriber can talk with a better quality.
You must be careful to use them, ’cause tehy will repeat the frequencies (wich may cause you some troubles with your frequency planning).
I don´t know if that was what you were asking, but there it is…
Hope I have helped you