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class="twoCol"><div id="8ur77ob" class="page-proshow clearfix"><p class="current"> 當(dāng)前位置:<a href="http://www.cdcfah.com/">首頁?<a href="http://www.cdcfah.com/cp/">產(chǎn)品供應(yīng)</a>?<a href="http://www.cdcfah.com/cp/second-_txcp/">通信產(chǎn)品</a>?<a href="http://www.cdcfah.com/cp/third-txcp_kctxcp/">庫存通訊產(chǎn)品</a>?濟(jì)南哪里有433m通信模塊來電咨詢上海磐笙電子科技供應(yīng)</p><div id="jl72krj" class="leftbox clearfix"><h1>濟(jì)南哪里有433m通信模塊來電咨詢上海磐笙電子科技供應(yīng)</h1><div id="qxewyam" class="proBig"><div id="tdprykm" class="bigimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637345502782919922/9722951.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div><div id="tiphoac" class="smallimg"><div><p class="pic"><img src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637345502782919922/9722951.png" class="vcenter" onerror="javascript:this.src='/static/new_net_01/images/nopic.jpg';"></p></div></div></div><div id="tiaxzwi" 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>上海市</p><p><span>包裝要求：</span><span style="color: #f30;"></span></p><p><span>產(chǎn)品關(guān)鍵詞：</span>濟(jì)南哪里有433m通信模塊,433M無線通訊模塊</p><p><span>***更新：</span>2021-02-03 09:14:51</p><p><span id="click" >瀏覽次數(shù)：2次</span></p><a rel="nofollow" class="button">聯(lián)系我們</a></div></div><div id="vph78oq" class="rightbox"><h3>公司基本資料信息</h3><p style="border:0;"><a rel="nofollow">上海磐笙電子科技有限公司</a></p><p><span>聯(lián)系人：</span>丁白蘭</p><p><span>郵箱: </span>258787059@qq.com</p><p><span>電話: </span>15002148001</p><p><span>傳真: </span>021_</p><p><span>網(wǎng)址: </span>http://www.panshion.cn</p><p><span>手機(jī): </span>021-31775145</p><p><span>地址: </span>羅城路530號住大商務(wù)樓A樓403室</p><p>[當(dāng)前離線] <a rel="nofollow"> [加為商友] </a><a rel="nofollow"> [發(fā)送信件] </a></p></div></div><div id="cls2hof" class="page-proshow02"><p class="title">詳細(xì)說明</p><div id="puw8tld" class="box"><p><p style="text-indent:25px">無線通信模塊的注意事項(xiàng)：模塊必須用信號調(diào)制才能正常工作模塊還有一種重要的用途就是配合單片機(jī)來實(shí)現(xiàn)數(shù)據(jù)通訊，這時(shí)有一定的技巧：1、合理的通訊速率。數(shù)據(jù)模塊的較大傳輸數(shù)據(jù)速率為9.6KBs，一般控制在2.5k左右，過高的數(shù)據(jù)速率會降低接收靈敏度及增大誤碼率甚至根本無法工作，濟(jì)南哪里有433m通信模塊。2、合理的信息碼格式。單片機(jī)和模塊工作時(shí)，通常自己定義傳輸協(xié)議，不論用何種調(diào)制方式，濟(jì)南哪里有433m通信模塊，所要傳遞的信息碼格式都很重要，濟(jì)南哪里有433m通信模塊，它將直接影響到數(shù)據(jù)的可靠收發(fā)展。433M無線模塊的集成電路配接時(shí)，直接將它們的數(shù)據(jù)輸出端第十七腳接至數(shù)據(jù)模塊的輸入端即可。濟(jì)南哪里有433m通信模塊</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="濟(jì)南哪里有433m通信模塊,433M無線通訊模塊" src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637345502782919922/9722951.png"></div><p style="text-indent:25px">433MHz在智慧家居的應(yīng)用：無線射頻燈光控制系統(tǒng)由智能面板開關(guān)和調(diào)光器組成，調(diào)光器用以發(fā)送和接收命令信號，命令通過無線電傳播，而不是通過家庭的電源線路傳輸。每個(gè)面板開關(guān)都備有一個(gè)不同的遙控識別代碼。這些代碼利用19位識別技術(shù)，使一些設(shè)備能準(zhǔn)確辨別每個(gè)指令。即使鄰居同時(shí)使用，也不會因其遙控器干擾而發(fā)生傳輸錯(cuò)誤。無線智能插座系列主要通過無線射頻技術(shù)實(shí)現(xiàn)對非遙控電器(如熱水器、電風(fēng)扇等)的電源遙控，不*為這些電器增加了無線遙控的功能，而且還較大限度地節(jié)約能源，保障安全。濟(jì)南哪里有433m通信模塊超外差接收機(jī)對天線的阻抗匹配要求較高。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="濟(jì)南哪里有433m通信模塊,433M無線通訊模塊" src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637345503381767578/745584.png"></div><p style="text-indent:25px">數(shù)據(jù)發(fā)射模塊的工作頻率為315M，采用聲表諧振器SAW穩(wěn)頻，頻率穩(wěn)定度極高，當(dāng)環(huán)境溫度在－25～+85度之間變化時(shí)，頻飄*為3ppm/度。主要技術(shù)指標(biāo)：1、通訊方式：調(diào)幅AM；2、工作頻率：315MHz/433MHz；3、頻率穩(wěn)定度：±75kHz；4、發(fā)射功率：≤500mW；5、靜態(tài)電流：≤0.1μA；6、發(fā)射電流：3～50mA；7、工作電壓：DC 3～12V。適用范圍:特別適合多發(fā)一收無線遙控及數(shù)據(jù)傳輸系統(tǒng)。聲表諧振器的頻率穩(wěn)定度*次于晶體，而一般的LC振蕩器頻率穩(wěn)定度及一致性較差，即使采用***微調(diào)電容，溫差變化及振動也很難保證已調(diào)好的頻點(diǎn)不會發(fā)生偏移。</p><p style="text-indent:25px">433m無線模塊的數(shù)據(jù)模塊采用ASK方式調(diào)制，以降低功耗，當(dāng)數(shù)據(jù)信號停止時(shí)發(fā)射電流降為零，數(shù)據(jù)信號與發(fā)射模塊輸入端可以用電阻或者直接連接而不能用電容耦合，否則發(fā)射模塊將不能正常工作。數(shù)據(jù)電平應(yīng)接近數(shù)據(jù)模塊的實(shí)際工作電壓，以獲得較高的調(diào)制效果。發(fā)射發(fā)射模塊較好能垂直安裝在主板的邊緣，應(yīng)離開周圍器件5mm以上，以免受分布參數(shù)影晌。模塊的傳輸距離與調(diào)制信號頻率及幅度，發(fā)射電壓及電池容量，發(fā)射天線，接收機(jī)的靈敏度，收發(fā)環(huán)境有關(guān)。一般在開闊區(qū)較大發(fā)射距離約800米，在有障礙的情況下，距離會縮短，由于無線電信號傳輸過程中的折射和反射會形成一些死區(qū)及不穩(wěn)定區(qū)域，不同的收發(fā)環(huán)境會有不同的收發(fā)距離。433m無線模塊具有較好的發(fā)射效果。</p><div style="width:100%;text-align: center;"><img style="max-width: 640px; max-height: 320px;" alt="濟(jì)南哪里有433m通信模塊,433M無線通訊模塊" src="https://tyunfile.71360.com/UploadFile/shpsdzkj/637345503264882813/3206863.png"></div><p style="text-indent:25px">433m無線模塊的電路優(yōu)勢:發(fā)射模塊未設(shè)編碼集成電路，而增加了一只數(shù)據(jù)調(diào)制三極管Q1,這種結(jié)構(gòu)使得它可以方便地和其它固定編碼電路、滾動碼電路及單片機(jī)接口，而不必考慮編碼電路的工作電壓和輸出幅度信號值的大小。比如用PT2262或者SM5262等編碼集成電路配接時(shí)，直接將它們的數(shù)據(jù)輸出端第17腳接至數(shù)據(jù)模塊的輸入端即可。數(shù)據(jù)模塊具有較寬的工作電壓范圍3～12V，當(dāng)電壓變化時(shí)發(fā)射頻率基本不變,和發(fā)射模塊配套的接收模塊無需任何調(diào)整就能穩(wěn)定地接收。33mhz的頻率屬于超短波。濟(jì)南哪里有433m通信模塊</p><p style="text-indent:25px">在無線煙感探測器中，少不了433MHz無線模塊。濟(jì)南哪里有433m通信模塊</p><p style="text-indent:25px">433m無線模塊的超外差指標(biāo)：超外差接收模塊采用進(jìn)口高性能無線遙控及數(shù)傳**集成電路RX3310A，并且采用316.8M聲表諧振器，所以工作穩(wěn)定可靠，適合比較惡劣的環(huán)境下全天候工作。從外接天線接收的信號經(jīng)C8耦合到L3、C9組成的選頻網(wǎng)絡(luò)進(jìn)行阻抗變換后輸入RX3310的內(nèi)部高頻放大器輸入端14腳，經(jīng)芯片內(nèi)的高頻放大后（增益為15～**B）的信號再經(jīng)混頻器與本機(jī)振蕩信號（316.8M)混頻，產(chǎn)生1.8M的中頻信號，此中頻信號經(jīng)內(nèi)部中頻放大后由第3腳輸出，再進(jìn)入比較器放大整形，數(shù)據(jù)從第8腳輸出。濟(jì)南哪里有433m通信模塊</p></p><br /><p>文章來源地址: http://www.cdcfah.com/cp/3141719.html</p></div></div></div></div></div><div id="gqnfmeg" class="page-right 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