With cable+antenna,1000 square meters work,GSM booster,GSM repeater,900Mhz booster,GSM signal booster,GSM signal repeater Full set GSM970 ... you can use directly. GSM mobile phone signal amplifier,cellphone repeater/booster, 1000 square meters workable .Model:970 DetailsA. Host: ... not good or bad. With cable+antenna,1000 square meters work,GSM booster,GSM repeater,900Mhz booster,GSM signal booster,GSM ...