通(tong)(tong)訊(xun)塔(ta)由塔(ta)體、平(ping)臺、避雷針、爬梯、天線(xian)(xian)支撐等(deng)鋼(gang)構件組成，并經熱鍍鋅防腐處理(li)，主要用于微波、超(chao)短波、無線(xian)(xian)網(wang)(wang)絡信號的(de)傳輸與發射(she)等(deng)。為了保(bao)證無線(xian)(xian)通(tong)(tong)信系(xi)統(tong)的(de)正(zheng)常運行，一般把通(tong)(tong)訊(xun)天線(xian)(xian)安置到(dao)(dao)最高(gao)(gao)點以(yi)增加服(fu)務半徑，以(yi)達(da)到(dao)(dao)理(li)想(xiang)的(de)通(tong)(tong)訊(xun)效果。而通(tong)(tong)訊(xun)天線(xian)(xian)必(bi)須(xu)有通(tong)(tong)訊(xun)塔(ta)來(lai)增加高(gao)(gao)度,所以(yi)通(tong)(tong)訊(xun)鐵塔(ta)在通(tong)(tong)訊(xun)網(wang)(wang)絡系(xi)統(tong)中起了重要作用.