{"id":54163,"date":"2019-12-19T00:00:00","date_gmt":"2019-12-18T21:00:00","guid":{"rendered":"https:\/\/prohoster.info\/blog\/blog_prohoster\/chto-takoe-zona-frenelya-i-ccq-client-connection-quality-ili-fundamentalnye-faktory-kachestvennogo-besprovodnogo-mosta"},"modified":"2020-02-18T14:02:08","modified_gmt":"2020-02-18T11:02:08","slug":"chto-takoe-zona-frenelya-i-ccq-client-connection-quality-ili-fundamentalnye-faktory-kachestvennogo-besprovodnogo-mosta","status":"publish","type":"post","link":"https:\/\/prohoster.info\/nl\/blog\/administrirovanie\/chto-takoe-zona-frenelya-i-ccq-client-connection-quality-ili-fundamentalnye-faktory-kachestvennogo-besprovodnogo-mosta","title":{"rendered":"Wat is de Fresnelzone en CCQ (Client Connection Quality) of fundamentele factoren voor een kwalitatieve draadloze brug?","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"<h3>Inhoud<\/h3>\n<p>\n<noindex><a rel=\"nofollow\" href=\"#1\">CCQ - wat is dat?<\/a><\/noindex><br \/>\n<noindex><a rel=\"nofollow\" href=\"#2\">Drie belangrijke factoren die van invloed zijn op de kwaliteit van CCQ.<\/a><\/noindex><br \/>\n<noindex><a rel=\"nofollow\" href=\"#3\">Fresnelzone - wat is dat?<\/a><\/noindex><br \/>\n<noindex><a rel=\"nofollow\" href=\"#4\">Hoe bereken je de Fresnelzone?<\/a><\/noindex><\/p>\n<p>In dit artikel wil ik het hebben over de fundamentele factoren voor het bouwen van een kwalitatief hoogwaardige draadloze brug, omdat veel 'netwerkbouwers' denken dat het voldoende is om kwalitatieve netwerkapparatuur aan te schaffen, deze te installeren en 100% rendement te behalen, wat niet voor iedereen lukt.<br \/>\n<noindex><a rel=\"nofollow\" name=\"habracut\"><\/a><\/noindex><br \/>\n<noindex><a rel=\"nofollow\" name=\"1\"><\/a><\/noindex><\/p>\n<h2>CCQ - wat is dat?<\/h2>\n<p>\nCCQ (Client Connection Quality) betekent in het Engels 'kwaliteit van de klantverbinding' - wat in wezen het percentage toont van de theoretisch mogelijke naar de daadwerkelijk huidige bandbreedte van de verbinding, met andere woorden, het percentage van de bereikte bandbreedte ten opzichte van de maximaal mogelijke met de specifieke apparatuur.<\/p>\n<p>Bijvoorbeeld, als je apparatuur hebt met een maximaal mogelijke bandbreedte van 200 mbits\/s, maar de huidige verbinding slechts 100 mbits\/s bedraagt - in dat geval is de CCQ 50%.<\/p>\n<p>In netwerkapparatuur <noindex><a rel=\"nofollow\" href=\"http:\/\/lanmarket.ua\/brends\/mikrotik\/\">Mikrotik<\/a><\/noindex> en <noindex><a rel=\"nofollow\" href=\"http:\/\/lanmarket.ua\/brends\/ubiquiti-networks\/\">Ubiquiti<\/a><\/noindex> zijn er twee aparte indicatoren aanwezig<br \/>\nTx. CCQ (Transmit CCQ) - de datasnelheid.<br \/>\nRx. CCQ (Receive CCQ) - de ontvangstsnelheid.<\/p>\n<p><img decoding=\"async\" alt=\"Wat is de Fresnelzone en CCQ (Client Connection Quality) of fundamentele factoren voor een kwalitatieve draadloze brug?\" src=\"\/wp-content\/uploads\/2019\/12\/9910fcca9d355316644e7402c1075c0b.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<noindex><a rel=\"nofollow\" name=\"2\"><\/a><\/noindex><\/p>\n<h2>Drie belangrijke factoren die van invloed zijn op de kwaliteit van CCQ<\/h2>\n<p>\n<b>1. Het afstemmen van twee antennes.<\/b> Als we het hebben over een 'point-to-point' draadloze brug, is het duidelijk dat de antennes elkaar zo nauwkeurig mogelijk moeten aankijken, 'ogen in de ogen'.<\/p>\n<p>Als een Wi-Fi brug 'point-to-multipoint' nodig is, moet je eerst de volledige architectuur vanaf de sectieantenne van de provider tot aan de klantantenne plannen, zodat ze maximaal nauwkeurig overlappen.<\/p>\n<p><b>2. Aanwezigheid van storingen in het kanaal.<\/b> Voordat je beslist over de frequentie van de Wi-Fi brug, moet je elke frequentie controleren op aanwezigheid van storingen en op basis van deze controle kiezen voor een minder drukke frequentie.<br \/>\n<noindex><a rel=\"nofollow\" name=\"3\"><\/a><\/noindex><br \/>\n<b>3. Fresnelzone.<\/b><\/p>\n<h2>Fresnelzone - wat is dat?<\/h2>\n<p>\nDe Fresnelzone is het volume van het radiogolfkanaal tussen twee antennes.<\/p>\n<p><img decoding=\"async\" alt=\"Wat is de Fresnelzone en CCQ (Client Connection Quality) of fundamentele factoren voor een kwalitatieve draadloze brug?\" src=\"\/wp-content\/uploads\/2019\/12\/dd9bd5cbb5f07626a66c6dd940cfee79.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nHet maximale volume van het kanaal bevindt zich in het centrale punt tussen de twee antennes. <\/p>\n<p>Voor het maximaal kwalitatieve signaal moet je de meest schone zone selecteren, zowel van fysieke obstakels als van radiogolven (zoals in het tweede punt is besproken).<br \/>\n<noindex><a rel=\"nofollow\" name=\"4\"><\/a><\/noindex><\/p>\n<h2>Hoe bereken je de Fresnelzone?<\/h2>\n<p>\n<b>Formule voor het berekenen van de Fresnelzone op het centrale punt:<\/b><\/p>\n<p><img decoding=\"async\" alt=\"Wat is de Fresnelzone en CCQ (Client Connection Quality) of fundamentele factoren voor een kwalitatieve draadloze brug?\" src=\"\/wp-content\/uploads\/2019\/12\/d497f3b91ee4c4309c6aade984ac2538.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nD - afstand (km)<br \/>\nf - frequentie (GHz)<\/p>\n<p><b>De formule voor het berekenen van de Fresnellzone op elk punt, bijvoorbeeld op een locatie met obstakels:<\/b><\/p>\n<p><img decoding=\"async\" alt=\"Wat is de Fresnelzone en CCQ (Client Connection Quality) of fundamentele factoren voor een kwalitatieve draadloze brug?\" src=\"\/wp-content\/uploads\/2019\/12\/711b65dcf74ea991eebe937777d3c460.jpg\" style=\"display:block;margin: 0 auto;\" \/><br \/>\n<br \/>\nf - frequentie (GHz)<br \/>\nD1 \u2014 de afstand tot het punt dat u wilt berekenen, vanaf de eerste antenne (km)<br \/>\nD2 \u2014 de afstand tot het punt dat u wilt berekenen, vanaf de tweede antenne (km)<\/p>\n<p>Door deze drie factoren goed te analyseren, zult u uiteindelijke een stabiele draadloze brug krijgen, met de maximaal mogelijke dataverbindingsnelheid.<br \/>\n<br \/>Bron: <a content=\"nofollow\" rel=\"nofollow\" href=\"https:\/\/habr.com\/ru\/post\/480964\/\">habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"<p>\u0421\u043e\u0434\u0435\u0440\u0436\u0430\u043d\u0438\u0435 CCQ \u2014 \u0447\u0442\u043e \u044d\u0442\u043e? \u0422\u0440\u0438 \u043e\u0441\u043d\u043e\u0432\u043d\u044b\u0445 \u0444\u0430\u043a\u0442\u043e\u0440\u0430 \u0432\u043b\u0438\u044f\u044e\u0449\u0438\u0435 \u043d\u0430 \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u043e CCQ. \u0417\u043e\u043d\u0430 \u0424\u0440\u0435\u043d\u0435\u043b\u044f \u2014 \u0447\u0442\u043e \u044d\u0442\u043e? \u041a\u0430\u043a \u0440\u0430\u0441\u0441\u0447\u0438\u0442\u0430\u0442\u044c \u0437\u043e\u043d\u0443 \u0424\u0440\u0435\u043d\u0435\u043b\u044f? \u0412 \u0434\u0430\u043d\u043d\u043e\u0439 \u0441\u0442\u0430\u0442\u044c\u0435 \u0445\u043e\u0447\u0443 \u043f\u043e\u0433\u043e\u0432\u043e\u0440\u0438\u0442\u044c \u043e \u0444\u0443\u043d\u0434\u0430\u043c\u0435\u043d\u0442\u0430\u043b\u044c\u043d\u044b\u0445 \u0444\u0430\u043a\u0442\u043e\u0440\u0430\u0445 \u043f\u043e\u0441\u0442\u0440\u043e\u0435\u043d\u0438\u044f \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0433\u043e \u0431\u0435\u0441\u043f\u0440\u043e\u0432\u043e\u0434\u043d\u043e\u0433\u043e \u043c\u043e\u0441\u0442\u0430, \u0442\u0430\u043a \u043a\u0430\u043a \u043c\u043d\u043e\u0433\u0438\u0435 \u00ab\u0441\u0435\u0442\u0435-\u0441\u0442\u0440\u043e\u0438\u0442\u0435\u043b\u0438\u00bb \u0441\u0447\u0438\u0442\u0430\u044e\u0442, \u0447\u0442\u043e \u0432\u043f\u043e\u043b\u043d\u0435 \u0434\u043e\u0441\u0442\u0430\u0442\u043e\u0447\u043d\u043e \u0431\u0443\u0434\u0435\u0442 \u043a\u0443\u043f\u0438\u0442\u044c \u043a\u0430\u0447\u0435\u0441\u0442\u0432\u0435\u043d\u043d\u043e\u0435 \u0441\u0435\u0442\u0435\u0432\u043e\u0435 \u043e\u0431\u043e\u0440\u0443\u0434\u043e\u0432\u0430\u043d\u0438\u0435, \u0443\u0441\u0442\u0430\u043d\u043e\u0432\u0438\u0442\u044c \u0438 \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c 100% \u043e\u0442\u0434\u0430\u0447\u0443 \u043e\u0442 \u043d\u0438\u0445 \u2014 \u0447\u0442\u043e [&hellip;]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-54163","post","type-post","status-publish","format-standard","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t<!-- All in One SEO 5.0.3 - aioseo.com -->\n\t<meta name=\"description\" content=\"\u0421\u043e\u0434\u0435\u0440\u0436\u0430\u043d\u0438\u0435 CCQ \u2014 \u0447\u0442\u043e \u044d\u0442\u043e? 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