鐵三(san)角(jiao)話(hua)筒(tong)又(you)稱(cheng)麥(mai)克風(feng)，壹種(zhong)電(dian)聲器材，屬傳(chuan)聲器，是聲電(dian)轉(zhuan)換的換能(neng)器，通(tong)過聲波作用到(dao)電(dian)聲元件上(shang)產(chan)生(sheng)電(dian)壓，再(zai)轉(zhuan)為(wei)電(dian)能(neng)。用於各(ge)種(zhong)擴(kuo)音(yin)設(she)備(bei)中(zhong)。鐵三(san)角(jiao)話(hua)筒(tong)種(zhong)類(lei)繁(fan)多(duo)，電(dian)路簡(jian)單。分析鐵三(san)角(jiao)話(hua)筒(tong)電(dian)路主(zhu)要掌握(wo)兩(liang)點：（1）信號(hao)傳(chuan)輸(shu)回(hui)路(lu)分析，比(bi)較(jiao)簡(jian)單，分析各種(zhong)鐵三(san)角(jiao)話(hua)筒(tong)輸(shu)入(ru)插口電(dian)路。（2）鐵三(san)角(jiao)話(hua)筒(tong)信(xin)號(hao)放大(da)器分析，鐵三(san)角(jiao)話(hua)筒(tong)放大(da)器是壹種(zhong)小(xiao)信(xin)號(hao)低(di)噪聲音(yin)頻(pin)放大(da)器，分析鐵三(san)角(jiao)話(hua)筒(tong)電(dian)平(ping)控(kong)制(zhi)電(dian)路並不困(kun)難。
隨著鐵三(san)角(jiao)話(hua)筒(tong)的普及和廣泛使(shi)用，怎樣才(cai)能(neng)使(shi)鐵三(san)角(jiao)話(hua)筒(tong)發(fa)揮醉好(hao)的效果(guo)
為(wei)使(shi)無(wu)線鐵三(san)角(jiao)話(hua)筒(tong)發(fa)揮醉佳(jia)的效果(guo)，必須(xu)處(chu)理(li)好發(fa)射機(ji)輸(shu)出(chu)電(dian)平(ping)增(zeng)益、接收(shou)機(ji)輸(shu)出(chu)增(zeng)益和調音(yin)臺輸(shu)入(ru)增(zeng)益三(san)者(zhe)間(jian)的關系，如(ru)處(chu)理(li)不當的話(hua)可能(neng)會出(chu)現聲音(yin)壓(ya)抑(yi)、沒有穿透力或(huo)聲音(yin)失真，甚至(zhi)過激。
正確(que)的操(cao)作(zuo)方法(fa)是接通無線鐵三(san)角(jiao)話(hua)筒(tong)接(jie)受(shou)接收(shou)機(ji)和音(yin)響系統(tong)電(dian)源，並將音(yin)響系統(tong)電(dian)平(ping)（0DB或(huo)+4DB）設定(ding)好後，把功(gong)放開至(zhi)醉大(da)輸(shu)出(chu)，同時(shi)把(ba)調音(yin)臺主(zhu)輸(shu)出(chu)音(yin)量定在(zai)0DB，打(da)開無線鐵三(san)角(jiao)話(hua)筒(tong)發(fa)射機(ji)電(dian)源，再(zai)把無線鐵三(san)角(jiao)話(hua)筒(tong)發(fa)射器的音(yin)頻(pin)輸(shu)出(chu)增(zeng)益定在70%～75%的位置(zhi)上(shang)，並把調(tiao)音(yin)臺上(shang)無線鐵三(san)角(jiao)話(hua)筒(tong)輸(shu)入(ru)通(tong)道的通道電(dian)位器定(ding)在(zai)0DB處(chu)；醉後仔(zai)細調整調音(yin)臺輸(shu)入(ru)增(zeng)益，必要時(shi)也(ye)可小(xiao)幅(fu)度調(tiao)整發(fa)射機(ji)音(yin)頻(pin)輸(shu)出(chu)增(zeng)益，直到(dao)鐵三(san)角(jiao)話(hua)筒(tong)效(xiao)果(guo)滿意(yi)為(wei)止(zhi)。
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