石獅天線(xiàn) 歡迎來(lái)電泉州市天陸通信科技供應(yīng)-b2b網(wǎng)站_b2b電子商務(wù)平臺(tái)【買(mǎi)產(chǎn)品】-上?？谄蚴称酚邢薰?/title><meta name="description" content="保護(hù)車(chē)載天線(xiàn)需要注意哪些？?天線(xiàn)處于車(chē)頂正中位置時(shí)發(fā)射效果比較好，但是這樣的話(huà)天線(xiàn)很高，過(guò)隧道或林蔭路的時(shí)候容易被掛到天線(xiàn)。下面請(qǐng)看車(chē)載天線(xiàn)需要注意哪些？?1：不使用仿造天線(xiàn)（因?yàn)橘|(zhì)量沒(méi)有保證），要么用鉆石天線(xiàn)，石獅天線(xiàn)，要么就用協(xié)會(huì)天線(xiàn)。"><meta name="keywords" content="石獅天線(xiàn),天線(xiàn)"><link rel="canonical" href="http://www.cdcfah.com/"/><meta name="applicable-device" content="pc"><link rel="shortcut icon" href="/static/new_net_01/images/favicon.ico"><link rel="stylesheet" href="/static/new_net_01/css/slick.css" /><link rel="stylesheet" href="/static/new_net_01/css/addnew.css"><link rel="stylesheet" href="/static/new_net_01/css/sidenav.css"><link rel="stylesheet" href="/static/new_net_01/css/style.css" /><link rel="stylesheet" href="/static/new_net_01/css/tab.css"><link rel="stylesheet" href="/static/new_net_01/css/404.css"> <meta 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id="gr39eev" class="twoCol"><div id="2wmjw8a" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁(yè)?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/first-_txcp/">通信產(chǎn)品</a>?<a href="http://www.cdcfah.com/cp/second-txcp_tianxianyk/">天線(xiàn)</a>?<a href="http://www.cdcfah.com/cp/third-tianxianyk_txtxhv/">通信天線(xiàn)</a>?石獅天線(xiàn) 歡迎來(lái)電泉州市天陸通信科技供應(yīng)</p><div id="8gnzl4k" class="leftbox clearfix"><h1>石獅天線(xiàn) 歡迎來(lái)電泉州市天陸通信科技供應(yīng)</h1><div id="n2mtpev" class="proBig"><div id="ijcjgza" class="bigimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/27/9/637104422023928519_qztl_1900394.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="k7zb3gg" class="smallimg"><div><p class="pic"><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/27/9/637104422023928519_qztl_1900394.jpg" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="gmnts2g" class="content"><p><span>需求數(shù)量：</span>0</p><p><span>價(jià)格要求：</span>面議</p><p><span>所在地：</span>福建省</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>石獅天線(xiàn),天線(xiàn)</p><p><span>***更新：</span>2020-07-09 11:35:57</p><p><span id="click" >瀏覽次數(shù)：0次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="gpgcoxo" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">泉州市天陸通信科技有限公司</a></p><p><span>聯(lián)系人：</span>景經(jīng)理</p><p><span>郵箱: </span>3131314848@qq.com</p><p><span>電話(huà): </span>18520272999</p><p><span>傳真: </span>0595_22002867</p><p><span>網(wǎng)址: </span></p><p><span>手機(jī): </span>0595-22001867</p><p><span>地址: </span>福建省泉州市豐澤區(qū)北峰工業(yè)區(qū)豐盛路20號(hào) </p><p>[當(dāng)前離線(xiàn)] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="dg2aqn7" class="page-proshow02"><p class="title">詳細(xì)說(shuō)明</p><div id="8pgamip" class="box"><p><p style="text-indent:25px">保護(hù)車(chē)載天線(xiàn)需要注意哪些？ ?天線(xiàn)處于車(chē)頂正中位置時(shí)發(fā)射效果比較好，但是這樣的話(huà)天線(xiàn)很高，過(guò)隧道或林蔭路的時(shí)候容易被掛到天線(xiàn)。下面請(qǐng)看車(chē)載天線(xiàn)需要注意哪些？ ?1：不使用仿造天線(xiàn)（因?yàn)橘|(zhì)量沒(méi)有保證），要么用鉆石天線(xiàn)，石獅天線(xiàn)，要么就用協(xié)會(huì)天線(xiàn)。保證天線(xiàn)本身具有1.5以下的駐波比。并且保證阻抗，電抗匹配，石獅天線(xiàn)。 ?2：天線(xiàn)不可以放倒使用，放倒以后駐波會(huì)很大，損傷機(jī)器。 ?3：天線(xiàn)不可放在室內(nèi)使用，同時(shí)也造成高駐波。還有害人體。 ?4：盡量不要總是拆卸天線(xiàn)，日久容易造成接觸不良產(chǎn)生高駐波，影響機(jī)器壽命。 ?5：下雨天注意接頭不能夠進(jìn)水，如果進(jìn)水，也會(huì)駐波高，石獅天線(xiàn)。平時(shí)也注意接頭的檢查。有沒(méi)有松曠的狀況。 ?6：經(jīng)常檢查饋線(xiàn)出車(chē)端，有沒(méi)有破損，如果有破損建議更換，因?yàn)橐矔?huì)造成電波泄漏，形成駐波，危害人體。如果斷了的就不能發(fā)射了。 ?7：車(chē)隊(duì)或者近距離通聯(lián)用小功率發(fā)射，也會(huì)增加車(chē)臺(tái)使用壽命。也對(duì)自己的健康有益。 ?8：如果是車(chē)載天線(xiàn)，車(chē)上的整流器對(duì)電瓶的輸出電壓要保證在15V以下。平時(shí)可以用電表測(cè)量。需要注意的是：熄火的時(shí)候電壓一般在12.5V左右，待速的電壓應(yīng)該在13.5V左右，提高轉(zhuǎn)速3千轉(zhuǎn)，只要不超過(guò)14V就說(shuō)明整流器沒(méi)有問(wèn)題。電臺(tái)也會(huì)得到很好的保護(hù)。按極化特性,4G天線(xiàn)可分為線(xiàn)極化（垂直極化和水平極化）4G天線(xiàn)、圓極化4G天線(xiàn)和橢圓極化4G天線(xiàn)；石獅天線(xiàn)</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="石獅天線(xiàn),天線(xiàn)" src="http://tyunfile.71360.com/UpLoadFile/2019/11/27/9/637104422023928519_qztl_1900394.jpg"></div><p style="text-indent:25px">天線(xiàn)是移動(dòng)通信系統(tǒng)中重要的組成部分，其質(zhì)量好壞對(duì)通信系統(tǒng)有直接的影響，**終影響手機(jī)的通信質(zhì)量和網(wǎng)絡(luò)的傳輸速度，基站在移動(dòng)通信中的位置比較固定，用戶(hù)數(shù)量較大，所以正大信維通信天線(xiàn)認(rèn)為，基站在選擇天線(xiàn)時(shí)應(yīng)該具備下述要求。 1、通信天線(xiàn)要有很高的增益。 2、天線(xiàn)的輻射方向應(yīng)覆蓋整個(gè)服務(wù)區(qū)域。 3、天線(xiàn)可在多個(gè)頻段工作，具有高帶寬。 4、天線(xiàn)與收發(fā)器之間要有良好的阻抗匹配。 5、通信天線(xiàn)的尺寸盡可能小，結(jié)構(gòu)盡可能緊湊。 6、天線(xiàn)多為線(xiàn)性偏振光，基站天線(xiàn)多為全向高增益天線(xiàn)。石獅天線(xiàn)高頻無(wú)線(xiàn)通信的主要問(wèn)題是信號(hào)的衰落，普通全向天線(xiàn)或定向天線(xiàn)都會(huì)因衰落使信號(hào)失真較大。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="石獅天線(xiàn),天線(xiàn)" src="http://tyunfile.71360.com/UpLoadFile/2019/11/27/9/637104422023928519_qztl_7147621.jpg"></div><p> 四、GPS天線(xiàn)的性能影響GPS天線(xiàn)性能的主要是以下幾個(gè)方面：1、陶瓷片：陶瓷粉末的好壞以及燒結(jié)工藝直接影響它的性能?，F(xiàn)市面使用的陶瓷片主要是25×25、18×18、15×15、12×12。陶瓷片面積越大，介電常數(shù)越大，其共振頻率越高，接受效果越好。陶瓷片大多是正方形設(shè)計(jì)，是為了保證在XY方向上共振基本一致，從而達(dá)到均勻收星的效果。2、銀層：陶瓷天線(xiàn)表面銀層可以影響天線(xiàn)共振頻率。理想的GPS陶瓷片頻點(diǎn)準(zhǔn)確落在，但天線(xiàn)頻點(diǎn)非常容易受到周邊環(huán)境影響，特別是裝配在整機(jī)內(nèi)，必須通過(guò)調(diào)整銀面涂層外形，來(lái)調(diào)節(jié)頻點(diǎn)重新保持在。因此GPS整機(jī)廠家在采購(gòu)天線(xiàn)時(shí)一定要配合天線(xiàn)廠家，提供整機(jī)樣品進(jìn)行測(cè)試。3、饋點(diǎn)：陶瓷天線(xiàn)通過(guò)饋點(diǎn)收集共振信號(hào)并發(fā)送至后端。由于天線(xiàn)阻抗匹配的原因，饋點(diǎn)一般不是在天線(xiàn)的正**，而是在XY方向上做微小調(diào)整。這樣的阻抗匹配方法簡(jiǎn)單而且沒(méi)有增加成本。*在單軸方向上移動(dòng)稱(chēng)為單偏天線(xiàn)，在兩軸均做移動(dòng)稱(chēng)為雙偏。4、放大電路：承載陶瓷天線(xiàn)的PCB形狀及面積。由于GPS有觸地反彈的特性，當(dāng)背景是7cm×7cm無(wú)間斷大地時(shí)，patch天線(xiàn)的效能可以發(fā)揮到。雖然受外觀結(jié)構(gòu)等因素制約，但盡量保持相當(dāng)?shù)拿娣e且形狀均勻。</p><p> 智能WiFi天線(xiàn)怎樣改進(jìn)無(wú)線(xiàn)網(wǎng)絡(luò)性能？企業(yè)的辦公場(chǎng)所是一個(gè)繁忙而經(jīng)常變化的環(huán)境，跟著職工的移動(dòng)，Wi-Fi信號(hào)可能被障礙物遮擋。另外，WiFi信號(hào)還可能被周?chē)渌黈iFi網(wǎng)絡(luò)信號(hào)或許職工的藍(lán)牙設(shè)備所攪擾，而平板電腦、筆記本、智能手機(jī)和其它WiFi設(shè)備在進(jìn)入WiFi網(wǎng)絡(luò)范圍后的主動(dòng)連接動(dòng)作(就算這些設(shè)備并不需要真正運(yùn)用Wi-Fi網(wǎng)絡(luò))，也會(huì)影響整個(gè)網(wǎng)絡(luò)的功能體驗(yàn)。這一切攪擾的成果就是Wi-Fi網(wǎng)絡(luò)丟包嚴(yán)峻，導(dǎo)致無(wú)線(xiàn)設(shè)備有必要重新發(fā)送數(shù)據(jù)，而這又導(dǎo)致網(wǎng)絡(luò)進(jìn)一步擁擠。因?yàn)椴簧僖苿?dòng)設(shè)備的Wi-Fi天線(xiàn)功能都不夠強(qiáng)，因此經(jīng)常會(huì)選用一種較低的數(shù)據(jù)傳輸速率與接入點(diǎn)保持連接，企圖**小化丟包狀況。帶寬越大，問(wèn)題越多因?yàn)榫W(wǎng)絡(luò)功能不良，并不是由帶寬缺乏引發(fā)的，因此一味加大網(wǎng)絡(luò)帶寬，并不能改善Wi-Fi網(wǎng)絡(luò)功能體驗(yàn)欠安的狀況。而添加接入點(diǎn)也會(huì)讓狀況更糟糕，因?yàn)楦嗟慕尤朦c(diǎn)會(huì)形成更多的抵觸并讓無(wú)線(xiàn)終端設(shè)備感到困惑，不知道該與哪個(gè)接入點(diǎn)連接。其中一種解決方案是運(yùn)用智能Wi-Fi設(shè)備接入點(diǎn)，同時(shí)運(yùn)用特殊軟件支持的網(wǎng)絡(luò)硬件設(shè)備或針對(duì)繁忙網(wǎng)絡(luò)環(huán)境優(yōu)化過(guò)的網(wǎng)絡(luò)設(shè)備。下雨天注意接頭不能夠進(jìn)水，如果進(jìn)水，也會(huì)駐波高。平時(shí)也注意接頭的檢查。有沒(méi)有松曠的狀況。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="石獅天線(xiàn),天線(xiàn)" src="http://tyunfile.71360.com/UpLoadFile/2019/11/27/9/637104422109030599_qztl_2904532.jpg"></div><p> WIFI天線(xiàn)戶(hù)外的應(yīng)用:我司戶(hù)外WIFI天線(xiàn)商品已廣泛應(yīng)用于景區(qū)內(nèi)。風(fēng)景區(qū)和自然保護(hù)區(qū)、濕地等區(qū)域的特殊性，地理位置上散布相對(duì)渙散。并且通常有修建、水域或山巒相隔；景區(qū)內(nèi)的文物古跡通常制止拉線(xiàn)鉆洞等工程性損壞，因此選用無(wú)線(xiàn)局域網(wǎng)技能建立無(wú)線(xiàn)網(wǎng)絡(luò)監(jiān)控體系，成為景區(qū)安全監(jiān)控體系建造的優(yōu)先。需求選用安穩(wěn)可靠的無(wú)線(xiàn)WIFI天線(xiàn)商品迅速完成實(shí)時(shí)圖畫(huà)監(jiān)控，以監(jiān)控野生動(dòng)物活動(dòng)狀況和成長(zhǎng)狀態(tài)、植物成長(zhǎng)狀況、操控風(fēng)景區(qū)人流、氣候地理?xiàng)l件，避免應(yīng)急事情發(fā)作。天線(xiàn)設(shè)備可靠性高，返修率極低，簡(jiǎn)直無(wú)保護(hù)成本；適合戶(hù)外惡劣環(huán)境，可完成非視距即有阻擋傳輸。按外形分類(lèi)，可分為線(xiàn)狀天線(xiàn)、面狀天線(xiàn)等分類(lèi)。汕頭車(chē)載天線(xiàn)</p><p style="text-indent:25px">WIFI天線(xiàn)的輸入阻抗是以收發(fā)機(jī)天線(xiàn)間的接口線(xiàn)端看入到的阻抗值。石獅天線(xiàn)</p><p style="text-indent:25px">通信產(chǎn)品是當(dāng)今基礎(chǔ)的民生服務(wù)行業(yè)之一，并且隨著工信部2015年信息通信業(yè)“十三五”規(guī)劃的出臺(tái)，市場(chǎng)對(duì)于通信產(chǎn)品熱度有增無(wú)減。專(zhuān)網(wǎng)通信產(chǎn)品是各**門(mén)實(shí)現(xiàn)有效指揮調(diào)度的必備裝備，一般要求大型組網(wǎng)和高性能產(chǎn)品，因此[ "玻璃鋼天線(xiàn)", "車(chē)載天線(xiàn)", "船舶天線(xiàn)", "對(duì)講機(jī)天線(xiàn)" ]是專(zhuān)業(yè)無(wú)線(xiàn)通信行業(yè)比較大的細(xì)分市場(chǎng)。隨著中國(guó)通信市場(chǎng)生產(chǎn)型的快速發(fā)展，人們的通信需求也日益多樣化，從**初較為單一的通話(huà)及短信業(yè)務(wù)發(fā)展到現(xiàn)有的上網(wǎng)、購(gòu)物、休閑娛樂(lè)等多樣化的服務(wù)。這些服務(wù)的實(shí)現(xiàn)需要龐大的基站數(shù)量和更加復(fù)雜的網(wǎng)絡(luò)技術(shù)來(lái)支撐，隨之而來(lái)的是運(yùn)營(yíng)商對(duì)通信網(wǎng)絡(luò)投資規(guī)模的增長(zhǎng)。通訊業(yè)是一個(gè)以技術(shù)為導(dǎo)向的行業(yè)，加工的開(kāi)發(fā)及應(yīng)用對(duì)行業(yè)的發(fā)展起著巨大的推動(dòng)作用。隨著3G技術(shù)的逐漸成熟、4G技術(shù)的試點(diǎn)推廣與商用化和5逐步試點(diǎn)，通信運(yùn)營(yíng)商進(jìn)行了相應(yīng)的大規(guī)?；A(chǔ)設(shè)施投資。石獅天線(xiàn)</p><p style="text-indent:25px">泉州市天陸通信科技有限公司創(chuàng)辦于2017-04-07，是一家生產(chǎn)型的公司。經(jīng)過(guò)多年不斷的歷練探索和創(chuàng)新發(fā)展，公司是一家有限責(zé)任公司企業(yè)，以誠(chéng)信務(wù)實(shí)的創(chuàng)業(yè)精神、質(zhì)量高效的管理團(tuán)隊(duì)、精悍的職工隊(duì)伍，努力為廣大用戶(hù)提供***的產(chǎn)品。公司始終堅(jiān)持客戶(hù)需求***的原則，致力于提供高質(zhì)量的[ "玻璃鋼天線(xiàn)", "車(chē)載天線(xiàn)", "船舶天線(xiàn)", "對(duì)講機(jī)天線(xiàn)" ]。泉州市天陸通信以創(chuàng)造***產(chǎn)品及服務(wù)的理念，打造高指標(biāo)的服務(wù)，引導(dǎo)行業(yè)的發(fā)展。</p></p><br /><p>文章來(lái)源地址: http://www.cdcfah.com/cp/546003.html</p></div></div></div></div></div><div id="ftk7ubn" class="page-right twoColRt"><div id="aulvwdu" class="box01 margin10 clearfix"><h3><a href="http://www.cdcfah.com/cp/">猜你喜歡</a></h3><div id="ycopw8d" class="recomPic likePro"><a href="http://www.cdcfah.com/cp/814588.html"><div><img src="http://tyunfile.71360.com/UpLoadFile/2019/11/1/14/637082168864691056_lgpj_5374157.jpg" alt="福建ZF配件哪家強(qiáng) 信息推薦自業(yè)物資供應(yīng)" class="vcenter" 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