一、電臺是什么意思
電臺是無(wu)(wu)線(xian)電(dian)臺(tai)(tai)的簡稱。設有(you)無(wu)(wu)線(xian)電(dian)發(fa)射機、接收(shou)機和天線(xian)等裝置,用以發(fa)送或接收(shou)無(wu)(wu)線(xian)電(dian)信(xin)號的場(chang)所。有(you)時(shi)也將這(zhe)些設備(bei)稱為電(dian)臺(tai)(tai)。從應(ying)用角(jiao)度出(chu)發(fa)可分為話音(yin)傳輸的對講電(dian)臺(tai)(tai)(如(ru)(ru):對講機、車載臺(tai)(tai)等)和數據傳輸的數傳電(dian)臺(tai)(tai)(如(ru)(ru):MDS數傳電(dian)臺(tai)(tai))等。
二、無線電臺的分類有哪些
無線電臺根(gen)據使用頻段或業務范(fan)圍進(jin)行分類。
1、按使用頻段分類,無(wu)線(xian)電(dian)臺(tai)根據使用的(de)頻段可(ke)統(tong)稱為長波電(dian)臺(tai)、中波電(dian)臺(tai)、短波電(dian)臺(tai)(也稱高(gao)頻電(dian)臺(tai))、超短波電(dian)臺(tai)、微波電(dian)臺(tai)等。
2、按業務范圍分類,設(she)置在地(di)球表面或地(di)球大氣(qi)層主要部分以內的(de)物(wu)體上的(de)電(dian)(dian)臺,統稱為地(di)面電(dian)(dian)臺。地(di)面電(dian)(dian)臺可分為:
(1)固定業(ye)務電(dian)臺(tai),包括(kuo):固定電(dian)臺(tai)、雷達臺(tai)(站)、定位電(dian)臺(tai)、測(ce)向(xiang)電(dian)臺(tai)。
(2)陸(lu)地(di)移(yi)動業務電(dian)(dian)臺(tai)(tai),包括:基地(di)電(dian)(dian)臺(tai)(tai)、移(yi)動電(dian)(dian)臺(tai)(tai)、定位陸(lu)地(di)電(dian)(dian)臺(tai)(tai)、定位移(yi)動電(dian)(dian)臺(tai)(tai)、信標電(dian)(dian)臺(tai)(tai)、緊(jin)急指位信標電(dian)(dian)臺(tai)(tai)、營救器電(dian)(dian)臺(tai)(tai)。
(3)航(hang)空業務電(dian)臺,包括:航(hang)空電(dian)臺、航(hang)空器電(dian)臺、無線電(dian)高度計電(dian)臺、航(hang)空導航(hang)陸地(di)
電(dian)臺、航(hang)空(kong)導航(hang)移動(dong)電(dian)臺、標(biao)志信標(biao)電(dian)臺、儀(yi)(yi)表(biao)著(zhu)陸(lu)系(xi)統電(dian)臺、儀(yi)(yi)表(biao)著(zhu)陸(lu)系(xi)統定位器電(dian)臺、儀(yi)(yi)表(biao)著(zhu)陸(lu)系(xi)統下滑航(hang)跡電(dian)臺等。
(4)水上(shang)(shang)業務電(dian)(dian)(dian)臺,包括:海岸(an)電(dian)(dian)(dian)臺、船(chuan)(chuan)舶電(dian)(dian)(dian)臺、船(chuan)(chuan)上(shang)(shang)通信電(dian)(dian)(dian)臺、港口電(dian)(dian)(dian)臺、海上(shang)(shang)導(dao)航陸(lu)地電(dian)(dian)(dian)臺、船(chuan)(chuan)舶定位(wei)電(dian)(dian)(dian)臺、雷達(da)信標電(dian)(dian)(dian)臺、船(chuan)(chuan)舶應急發信機。
(5)廣(guang)(guang)(guang)播(bo)業務電臺,包括:聲音(yin)廣(guang)(guang)(guang)播(bo)發(fa)射臺、電視廣(guang)(guang)(guang)播(bo)發(fa)射臺、廣(guang)(guang)(guang)播(bo)差(cha)轉臺。
(6)業余電臺(tai)。
(7)標準頻(pin)率和時間信號電(dian)臺。
(8)氣象業務電臺,包括:空間電臺、地球站、測控地球站、基地地球站、陸地移動地球站(zhan)(zhan)、海岸(an)地(di)球站(zhan)(zhan)、船舶地(di)球站(zhan)(zhan)、航空地(di)球站(zhan)(zhan)、航空器(qi)地(di)球站(zhan)(zhan)、衛星(xing)緊急指位信標電臺(tai)。