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<div id="ouqiouuy" class="li11 oSupDesc"> 呼叫器分為有線(xiàn)呼叫器和無(wú)線(xiàn)呼叫器兩種，無(wú)線(xiàn)呼叫器使用較為廣泛。按產(chǎn)品技術(shù)分，無(wú)線(xiàn)呼叫器可以分為調頻技術(shù)和調幅技術(shù)。呼叫器的使用場(chǎng)所越來(lái)越廣泛，可以應用在餐飲服務(wù)、銀行、行政辦公、商超連鎖、工廠(chǎng)工地、醫療養老等很多行業(yè)，并且功能日益多樣化。<br><img style="margin: auto;clear: both;display: block" src="http://l.b2b168.com/2019/07/26/21/201907262144282051574.jpg" alt="宜昌樓層呼叫器"/><br>由于調幅技術(shù)的特點(diǎn)是低成本，生產(chǎn)制造簡(jiǎn)單，但信號不穩定，容易收到干擾，且不適合大范圍無(wú)線(xiàn)組網(wǎng)，這類(lèi)產(chǎn)品只能用于相對小的場(chǎng)所，由于調幅AM技術(shù)簡(jiǎn)單，適合小企業(yè)組裝和DIY，仍有很多呼叫器企業(yè)以調幅技術(shù)為主，如：99路、客滿(mǎn)鈴、紅鈴等。<br><img style="margin: auto;clear: both;display: block" src="http://l.b2b168.com/2019/07/24/21/201907242142576073254.jpg" alt="宜昌樓層呼叫器"/><br>無(wú)線(xiàn)呼叫器從技術(shù)和應用可大致分為三個(gè)階段：第一階段以調幅AM技術(shù)為主（即：第一代無(wú)線(xiàn)呼叫器），主要用于場(chǎng)地較小的場(chǎng)所；第二階段是以調頻FM為核心技術(shù)的產(chǎn)品（即：第二代無(wú)線(xiàn)呼叫器系統），信號穩定，適合大型組網(wǎng)，應用行業(yè)從茶樓、咖啡廳等小型服務(wù)場(chǎng)所，發(fā)展到大型娛樂(lè )場(chǎng)所、酒店、工廠(chǎng)、超市、學(xué)校和銀行等行業(yè)，這個(gè)階段是無(wú)線(xiàn)呼叫器應用發(fā)展較為迅速的一個(gè)時(shí)期；第三階段是擴頻跳頻智能技術(shù)，全中文顯示及全中文語(yǔ)音播報和開(kāi)發(fā)軟件與無(wú)線(xiàn)呼叫系統的結合，實(shí)現了無(wú)線(xiàn)呼叫器從固定的呼叫模式轉向專(zhuān)業(yè)客戶(hù)定制服務(wù)，成為無(wú)線(xiàn)呼叫器系統應用的趨勢和主流。<br><img style="margin: auto;clear: both;display: block" src="http://l.b2b168.com/2019/07/26/21/201907262144274831874.jpg" alt="宜昌樓層呼叫器"/><br>無(wú)線(xiàn)呼叫系統的距離問(wèn)題是所有客戶(hù)較關(guān)心的問(wèn)題，產(chǎn)品的理論距離是1.5公里，即在空曠的無(wú)障礙物的理想狀態(tài)下測試的，因為在正常的使用中不可能沒(méi)有障礙物，所以實(shí)際安裝之前要到現場(chǎng)進(jìn)行測試。<br><div style="display:none;">-/gbaciei/-</div><br /><a href="http://www.p28007.cn/">http://www.p28007.cn</a> </div> </ul> </div> </div> </div> <div class="ouqiouuy" id="bottom"> <div id="ouqiouuy" class="foot"> <ul class="nvft"> </ul> <ul class="btnImg"> <li><p id="mousShopsId"></p><strong class="st">手機商鋪</strong></li> <script type="text/javascript"> new QRCode("mousShopsId", { width: 100, height: 100 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