{"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\/pt\/blog\/administrirovanie\/chto-takoe-zona-frenelya-i-ccq-client-connection-quality-ili-fundamentalnye-faktory-kachestvennogo-besprovodnogo-mosta","title":{"rendered":"O que \u00e9 a zona de Fresnel e CCQ (Qualidade de Conex\u00e3o do Cliente) ou fatores fundamentais para uma ponte wireless de qualidade?","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

Conte\u00fado<\/h3>\n

\nCCQ \u2014 o que \u00e9?<\/a><\/noindex>
\nTr\u00eas fatores principais que influenciam a qualidade do CCQ.<\/a><\/noindex>
\nZona de Fresnel \u2014 o que \u00e9?<\/a><\/noindex>
\nComo calcular a zona de Fresnel?<\/a><\/noindex><\/p>\n

Neste artigo, quero falar sobre os fatores fundamentais para construir uma ponte sem fio de qualidade, j\u00e1 que muitos \"construtores de redes\" acreditam que basta comprar equipamentos de rede de qualidade, instalar e obter 100% de proveito \u2014 o que, no final, n\u00e3o acontece com todos.
\n<\/a><\/noindex>
\n<\/a><\/noindex><\/p>\n

CCQ \u2014 o que \u00e9?<\/h2>\n

\nCCQ (Client Connection Quality) \u00e9 traduzido do ingl\u00eas como \"qualidade da conex\u00e3o do cliente\" \u2014 que, basicamente, mostra a propor\u00e7\u00e3o percentual da largura de banda te\u00f3rica poss\u00edvel em rela\u00e7\u00e3o \u00e0 largura de banda atualmente dispon\u00edvel, ou seja, a porcentagem da largura de banda alcan\u00e7ada em compara\u00e7\u00e3o com a m\u00e1xima poss\u00edvel para um determinado equipamento.<\/p>\n

Por exemplo, se voc\u00ea usar equipamentos com uma largura de banda m\u00e1xima de 200 Mbit\/s, mas na verdade a largura de banda atual no canal \u00e9 de 100 Mbit\/s, nesse caso o CCQ \u00e9 igual a 50%<\/p>\n

Em equipamentos de rede Mikrotik<\/a><\/noindex> e Ubiquiti<\/a><\/noindex> existem dois indicadores separados
\nTx. CCQ (Transmit CCQ) \u2014 velocidade de transmiss\u00e3o de dados.
\nRx. CCQ (Receive CCQ) \u2014 velocidade de recebimento de dados.<\/p>\n

\"O
\n<\/a><\/noindex><\/p>\n

Tr\u00eas fatores principais que influenciam a qualidade do CCQ<\/h2>\n

\n1. Alinhamento das duas antenas.<\/b> Falando sobre uma ponte sem fio \"ponto a ponto\", \u00e9 claro que as antenas devem se olhar o mais precisamente poss\u00edvel, \"olho no olho\".<\/p>\n

Se precisar de uma ponte Wi-Fi \"ponto a multiponto\" \u2014 inicialmente, deve-se planejar toda a arquitetura desde a antena setorial do provedor at\u00e9 as antenas clientes, de modo que elas se cruzem o mais precisamente poss\u00edvel.<\/p>\n

2. A presen\u00e7a de ru\u00eddo no canal.<\/b> Antes de definir a frequ\u00eancia da ponte Wi-Fi, \u00e9 indispens\u00e1vel verificar cada frequ\u00eancia quanto \u00e0 presen\u00e7a de ru\u00eddo; a partir dessa verifica\u00e7\u00e3o, escolha uma frequ\u00eancia menos congestionada.
\n<\/a><\/noindex>
\n3. Zona de Fresnel.<\/b><\/p>\n

Zona de Fresnel \u2014 o que \u00e9?<\/h2>\n

\nA zona de Fresnel \u00e9 o volume do canal de ondas de r\u00e1dio entre duas antenas.<\/p>\n

\"O
\n
\nO volume m\u00e1ximo do canal est\u00e1 no ponto central entre as duas antenas. <\/p>\n

Para um sinal de m\u00e1xima qualidade, \u00e9 necess\u00e1rio escolher a zona mais limpa, tanto de obst\u00e1culos f\u00edsicos quanto de ondas de r\u00e1dio (como foi mencionado no segundo ponto).
\n<\/a><\/noindex><\/p>\n

Como calcular a zona de Fresnel?<\/h2>\n

\nF\u00f3rmula para c\u00e1lculo da zona de Fresnel em seu ponto central:<\/b><\/p>\n

\"O
\n
\nD \u2014 dist\u00e2ncia (km)
\nf \u2014 frequ\u00eancia (GHz)<\/p>\n

F\u00f3rmula para o c\u00e1lculo da zona de Fresnel em qualquer ponto, por exemplo, no local de um obst\u00e1culo:<\/b><\/p>\n

\"O
\n
\nf \u2014 frequ\u00eancia (GHz)
\nD1 \u2014 dist\u00e2ncia at\u00e9 o ponto de c\u00e1lculo desejado, a partir da primeira antena (km)
\nD2 \u2014 dist\u00e2ncia at\u00e9 o ponto de c\u00e1lculo desejado, a partir da segunda antena (km)<\/p>\n

Ao considerar cuidadosamente esses tr\u00eas fatores, voc\u00ea finalmente obter\u00e1 uma ponte sem fio est\u00e1vel, com a m\u00e1xima velocidade de transmiss\u00e3o de dados poss\u00edvel.
\n
Fonte: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"

\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 […]<\/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\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47 O que \u00e9 a zona de Fresnel e CCQ (Qualidade de Conex\u00e3o do Cliente) ou fatores fundamentais para uma ponte sem fio de qualidade | ProHoster","description":"Conte\u00fado do CCQ \u2014 o que \u00e9 isso? 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