With cable+antenna,1000 square meters work,GSM booster,GSM repeater,900Mhz booster,GSM signal booster,GSM ... shall be as good as possible . The product will not work good if our outdoor signal is not good or bad ... . With cable+antenna,1000 square meters work,GSM booster,GSM repeater,900Mhz booster,GSM signal booster,GSM ...