... & MGC function 3) CE approvel GSM Single band repeater -3G PCS GSM indoor repeater amplifier:1) Output from 20dbm to 27dbm, gain ... ALC circuits, which can automatically control the gain of the repeater depending upon the strength of input signals.4) Compact size ... other handheld devices throughout a buliding can benefit from a wireless repeater, extended phone battery life.6) LED light working and ...