光(guang)纖(xian)直(zhi)(zhi)放(fang)站(zhan)(zhan),是(shi)一種信(xin)(xin)號中繼設(she)備(bei)。其主(zhu)要作用(yong)是(shi)將收到的信(xin)(xin)號,經光(guang)電(dian)變換成光(guang)信(xin)(xin)號,傳(chuan)輸后又經電(dian)光(guang)變換回復電(dian)信(xin)(xin)號在(zai)發(fa)出。光(guang)纖(xian)直(zhi)(zhi)放(fang)站(zhan)(zhan)具有低IP3(小(xiao)(xiao)于-36dBm)、低噪(zao)聲系數(NF)、整機(ji)可(ke)靠等特點,使用(yong)直(zhi)(zhi)放(fang)站(zhan)(zhan)可(ke)實現“小(xiao)(xiao)容(rong)量(liang)、大覆(fu)蓋(gai)”的目標(biao),減(jian)少基站(zhan)(zhan)數量(liang),延伸覆(fu)蓋(gai)范(fan)圍。
光(guang)(guang)纖直放站,是(shi)一種信(xin)(xin)號(hao)中(zhong)繼設備。其主(zhu)要作用是(shi)將收(shou)到的信(xin)(xin)號(hao),經光(guang)(guang)電變換成光(guang)(guang)信(xin)(xin)號(hao),傳輸后又經電光(guang)(guang)變換回復電信(xin)(xin)號(hao)在發出。
光纖直(zhi)放站具有低IP3(小(xiao)于-36dBm)、低噪聲系數(shu)(shu)(NF)、整機可靠等(deng)特點,使(shi)用(yong)直(zhi)放站可實(shi)現“小(xiao)容量、大覆蓋”的目標,減少基站數(shu)(shu)量,延(yan)伸覆蓋范圍(wei)。