{"product_id":"antena-digital-externa-yagi-amplificada-uhf-vhf-hdtv-longo-alcance-com-mastro","title":"Antena Digital Externa Yagi Amplificada UHF\/VHF\/HDTV - Longo Alcance com Mastro","description":"\u003cmeta charset=\"UTF-8\"\u003e\u003cmeta name=\"viewport\" content=\"width=device-width,initial-scale=1\"\u003e\u003cstyle\u003e*{box-sizing:border-box;margin:0;padding:0}body{font-family:'Segoe UI',Arial,sans-serif;color:#111;background:#f7f7f7;line-height:1.6}.wrap{max-width:860px;margin:0 auto;padding:0 16px}.hero{background:linear-gradient(135deg,#111 60%,#1a1a2e 100%);color:#fff;padding:56px 32px 48px;text-align:center;border-radius:0 0 24px 24px}.hero h1{font-size:2rem;font-weight:900;letter-spacing:-0.5px;margin-bottom:12px;line-height:1.2}.hero h1 span{color:#d72635}.hero p{font-size:1.1rem;opacity:.88;max-width:600px;margin:0 auto 24px}.hero-badge{display:inline-block;background:#d72635;color:#fff;font-weight:700;font-size:.85rem;padding:6px 18px;border-radius:20px;letter-spacing:.5px;margin-bottom:8px}.bullets{display:grid;grid-template-columns:repeat(auto-fit,minmax(180px,1fr));gap:14px;margin:32px 0}.bullet{background:#fff;border-left:4px solid #d72635;border-radius:8px;padding:16px 18px;box-shadow:0 2px 8px rgba(0,0,0,.07)}.bullet strong{display:block;font-size:1rem;color:#d72635;margin-bottom:4px}.section{background:#fff;border-radius:12px;padding:32px;margin:24px 0;box-shadow:0 2px 12px rgba(0,0,0,.06)}.section h2{font-size:1.3rem;font-weight:800;color:#111;border-bottom:3px solid #d72635;padding-bottom:8px;margin-bottom:18px}.cards{display:grid;grid-template-columns:repeat(auto-fit,minmax(220px,1fr));gap:16px;margin:8px 0}.card{background:#f7f7f7;border-radius:10px;padding:22px 18px;text-align:center;border:1.5px solid #eee;transition:box-shadow .2s}.card:hover{box-shadow:0 4px 18px rgba(215,38,53,.12)}.card-icon{font-size:2rem;margin-bottom:10px}.card h3{font-size:1rem;font-weight:800;color:#111;margin-bottom:6px}.card p{font-size:.88rem;color:#444}table.specs{width:100%;border-collapse:collapse;margin-top:8px}table.specs tr:nth-child(even){background:#f7f7f7}table.specs td{padding:10px 14px;border-bottom:1px solid #e5e5e5;font-size:.93rem}table.specs td:first-child{font-weight:700;width:45%;color:#111}table.specs td:last-child{color:#444}.compat{display:flex;flex-wrap:wrap;gap:10px;margin-top:10px}.compat-tag{background:#f0f0f0;border-radius:20px;padding:6px 16px;font-size:.85rem;font-weight:600;color:#333;border:1.5px solid #ddd}.box-list{list-style:none;padding:0}.box-list li{padding:8px 0;border-bottom:1px solid #f0f0f0;font-size:.93rem;display:flex;align-items:center;gap:8px}.box-list li:before{content:\"v\";color:#16a34a;font-weight:900}.reviews{display:grid;grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:16px;margin-top:8px}.review{background:#fff;border:1.5px solid #eee;border-radius:10px;padding:20px}.review .stars{color:#f59e0b;font-size:1.1rem;margin-bottom:6px}.review .author{font-size:.82rem;color:#888;margin-top:8px}.faq details{border-bottom:1px solid #eee;padding:14px 0}.faq summary{font-weight:700;cursor:pointer;list-style:none;font-size:.95rem}.faq summary::-webkit-details-marker{display:none}.faq details[open] summary{color:#d72635}.faq p{margin-top:8px;font-size:.9rem;color:#555}.cta-box{background:linear-gradient(135deg,#111 0%,#1a1a2e 100%);color:#fff;border-radius:14px;padding:40px 32px;text-align:center;margin:32px 0}.cta-box h2{font-size:1.6rem;font-weight:900;margin-bottom:10px}.cta-box p{opacity:.85;margin-bottom:20px;font-size:1rem}.price-old{font-size:1.1rem;text-decoration:line-through;opacity:.6;margin-bottom:2px}.price-new{font-size:2.4rem;font-weight:900;color:#d72635}.price-new sup{font-size:1rem;vertical-align:top;margin-top:6px}.urgencia{display:inline-block;background:#16a34a;color:#fff;font-weight:700;font-size:.85rem;padding:7px 20px;border-radius:20px;margin-top:12px;letter-spacing:.3px}.garantia{background:#f0fdf4;border:2px solid #16a34a;border-radius:10px;padding:18px 20px;margin-top:18px;font-size:.9rem;color:#166534}@media(max-width:600px){.hero{padding:36px 16px 32px}.hero h1{font-size:1.45rem}.cta-box{padding:28px 16px}}\u003c\/style\u003e\u003cdiv class=\"wrap\"\u003e\n\u003cdiv class=\"hero\"\u003e\n\u003cdiv class=\"hero-badge\"\u003eSINAL CRISTALINO NO INTERIOR\u003c\/div\u003e\n\u003ch1\u003eTV cristalina mesmo a \u003cspan\u003e100km da torre\u003c\/span\u003e\n\u003c\/h1\u003e\n\u003cp\u003eAntena Yagi externa amplificada com alto ganho para quem mora longe da cidade. Chega o sinal onde nenhuma antena comum alcanca.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"bullets\"\u003e\n\u003cdiv class=\"bullet\"\u003e\n\u003cstrong\u003e18 dBi de ganho\u003c\/strong\u003eCaptacao profissional de sinal UHF\/VHF em longas distancias\u003c\/div\u003e\n\u003cdiv class=\"bullet\"\u003e\n\u003cstrong\u003eEstrutura aluminio\u003c\/strong\u003eResistente a chuva, sol e vento -- instalacao definitiva\u003c\/div\u003e\n\u003cdiv class=\"bullet\"\u003e\n\u003cstrong\u003eAmplificador incluido\u003c\/strong\u003eAmplificacao LNA de baixo ruido, alimentacao USB 5V\u003c\/div\u003e\n\u003cdiv class=\"bullet\"\u003e\n\u003cstrong\u003eKit completo\u003c\/strong\u003eMastro, cabo coaxial 10m e conectores -- tudo na caixa\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"section\"\u003e\n\u003ch2\u003ePor que uma Yagi faz a diferenca?\u003c\/h2\u003e\n\u003cp style=\"margin-bottom:14px\"\u003eQuem mora no interior, em sitio ou a mais de 50 km do transmissor conhece bem a frustracao: imagem pixelada, travamentos constantes, canais que somem. As antenas internas e as fantasminha simplesmente nao tem ganho suficiente para captar o sinal digital terrestre (ISDB-Tb) em longas distancias.\u003c\/p\u003e\n\u003cp style=\"margin-bottom:14px\"\u003eA antena Yagi-Uda e o padrao ouro para recepcao direcional de TV. Com 13 elementos em aluminio de alta condutividade dispostos em configuracao Yagi-Uda, toda a energia e concentrada na direcao da torre, resultando em \u003cstrong\u003eganho real de 18 dBi\u003c\/strong\u003e -- ate 6x mais potente que uma antena de 3 dBi.\u003c\/p\u003e\n\u003cp\u003eCombinada ao amplificador de sinal LNA integrado (insercao de ruido menor que 2 dB), essa antena garante recepcao estavel mesmo em terrenos ondulados, vales e areas com obstaculos naturais.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"section\"\u003e\n\u003ch2\u003eO que torna esta antena especial\u003c\/h2\u003e\n\u003cdiv class=\"cards\"\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cdiv class=\"card-icon\"\u003e📡\u003c\/div\u003e\n\u003ch3\u003eDesign Yagi-Uda Classico\u003c\/h3\u003e\n\u003cp\u003e13 elementos diretores em aluminio naval. Padrao diretivo de feixe estreito para maximo ganho direcional.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cdiv class=\"card-icon\"\u003e⚡\u003c\/div\u003e\n\u003ch3\u003eAmplificador LNA\u003c\/h3\u003e\n\u003cp\u003eLow Noise Amplifier integrado com figura de ruido menor que 2 dB. Alimentacao USB 5V por injetor de corrente incluso.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cdiv class=\"card-icon\"\u003e🎯\u003c\/div\u003e\n\u003ch3\u003eAlcance ate 100 km\u003c\/h3\u003e\n\u003cp\u003eGanho de 18 dBi garante captacao de canais digitais abertos em raio de ate 100 km com visada desobstruida.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cdiv class=\"card-icon\"\u003e📺\u003c\/div\u003e\n\u003ch3\u003eUHF + VHF Full HD \/ 4K\u003c\/h3\u003e\n\u003cp\u003eBanda UHF 470-806 MHz + VHF. Compativel com todos os canais abertos brasileiros no padrao ISDB-Tb 4K.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cdiv class=\"card-icon\"\u003e🔩\u003c\/div\u003e\n\u003ch3\u003eMastro e Suporte inclusos\u003c\/h3\u003e\n\u003cp\u003eMastro de aluminio 1 m, diametro 32 mm, bracadeiras de fixacao e todos os acessorios para instalacao completa em telhado ou parede.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"card\"\u003e\n\u003cdiv class=\"card-icon\"\u003e🌧\u003c\/div\u003e\n\u003ch3\u003eInstalacao Externa\u003c\/h3\u003e\n\u003cp\u003eEstrutura em aluminio com tratamento UV. Resistente a chuva, vento e calor. Projetada para uso externo permanente.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"section\"\u003e\n\u003ch2\u003eEspecificacoes Tecnicas\u003c\/h2\u003e\n\u003ctable class=\"specs\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eTipo\u003c\/td\u003e\n\u003ctd\u003eYagi-Uda Direcional Amplificada\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGanho\u003c\/td\u003e\n\u003ctd\u003e18 dBi\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBanda de Frequencia UHF\u003c\/td\u003e\n\u003ctd\u003e470 - 806 MHz (Canais 14-69)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBanda VHF\u003c\/td\u003e\n\u003ctd\u003e54 - 216 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumero de Elementos\u003c\/td\u003e\n\u003ctd\u003e13 elementos\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpedancia\u003c\/td\u003e\n\u003ctd\u003e75 Ohm (conector F) \/ 300 Ohm (entrada balun)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRelacao Frente\/Costas (F\/B)\u003c\/td\u003e\n\u003ctd\u003emaior que 20 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlcance maximo\u003c\/td\u003e\n\u003ctd\u003eAte 100 km (linha de visada desobstruida)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmplificador\u003c\/td\u003e\n\u003ctd\u003eLNA de baixo ruido, NF menor que 2 dB, ganho 20 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAlimentacao amplificador\u003c\/td\u003e\n\u003ctd\u003e5V DC via USB (injetor de corrente incluso)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConector de saida\u003c\/td\u003e\n\u003ctd\u003eF femea + adaptador RCA\/coaxial incluso\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCabo coaxial incluso\u003c\/td\u003e\n\u003ctd\u003e10 metros RG6 com conectores F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterial\u003c\/td\u003e\n\u003ctd\u003eAluminio 6061-T6 anodizado + plastico UV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensoes montada\u003c\/td\u003e\n\u003ctd\u003e1270 x 320 x 152 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePeso total\u003c\/td\u003e\n\u003ctd\u003e750 g (antena) + 320 g (acessorios)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMastro\u003c\/td\u003e\n\u003ctd\u003eAluminio 1 m, diametro 32 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTemperatura de operacao\u003c\/td\u003e\n\u003ctd\u003e-20C a +70C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePadrao de TV\u003c\/td\u003e\n\u003ctd\u003eISDB-Tb (Brasil), ATSC, DVB-T2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"section\"\u003e\n\u003ch2\u003eCompatibilidade\u003c\/h2\u003e\n\u003cdiv class=\"compat\"\u003e\n\u003cspan class=\"compat-tag\"\u003eSmart TV Samsung\u003c\/span\u003e\u003cspan class=\"compat-tag\"\u003eSmart TV LG\u003c\/span\u003e\u003cspan class=\"compat-tag\"\u003eSmart TV Sony\u003c\/span\u003e\u003cspan class=\"compat-tag\"\u003eSmart TV Philips\u003c\/span\u003e\u003cspan class=\"compat-tag\"\u003eConversor Digital\u003c\/span\u003e\u003cspan class=\"compat-tag\"\u003eReceptor IPTV\u003c\/span\u003e\u003cspan class=\"compat-tag\"\u003eTV LED \/ LCD\u003c\/span\u003e\u003cspan class=\"compat-tag\"\u003eProjetor Full HD\u003c\/span\u003e\u003cspan class=\"compat-tag\"\u003eH.TV Box\u003c\/span\u003e\u003cspan class=\"compat-tag\"\u003eBox Android TV\u003c\/span\u003e\u003cspan class=\"compat-tag\"\u003eReceptor Elsys\u003c\/span\u003e\u003cspan class=\"compat-tag\"\u003eReceiver Intelbras\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"section\"\u003e\n\u003ch2\u003eConteudo da Caixa\u003c\/h2\u003e\n\u003cul class=\"box-list\"\u003e\n\u003cli\u003e1x Antena Yagi 13 elementos (aluminio desmontada para transporte)\u003c\/li\u003e\n\u003cli\u003e1x Amplificador LNA com injetor de corrente USB 5V\u003c\/li\u003e\n\u003cli\u003e1x Mastro de aluminio 1 m (32 mm)\u003c\/li\u003e\n\u003cli\u003e1x Cabo coaxial RG6 10 metros com conectores F montados\u003c\/li\u003e\n\u003cli\u003e1x Kit bracadeiras de fixacao (parede \/ telhado)\u003c\/li\u003e\n\u003cli\u003e1x Adaptador F para RCA e F para IEC 9,52 mm\u003c\/li\u003e\n\u003cli\u003e1x Manual de instalacao em portugues\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"section\"\u003e\n\u003ch2\u003eO que dizem quem mora no interior\u003c\/h2\u003e\n\u003cdiv class=\"reviews\"\u003e\n\u003cdiv class=\"review\"\u003e\n\u003cdiv class=\"stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cp\u003eMoro a 80 km de Uberaba e tinha desistido de TV aberta. Instalei essa antena no telhado, apontei pra torre com o Google Maps e peguei 14 canais em Full HD sem nenhuma falha. Incrivel!\u003c\/p\u003e\n\u003cdiv class=\"author\"\u003e-- Carlos M., Conquista\/MG\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"review\"\u003e\n\u003cdiv class=\"stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cp\u003eSitio a 65 km de Ribeirao Preto. Antes travava todo dia, agora e perfeito 24h. O cabo de 10m foi suficiente do telhado ate a TV. Vale muito o dinheiro.\u003c\/p\u003e\n\u003cdiv class=\"author\"\u003e-- Rosangela F., Jardinopolis\/SP\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"review\"\u003e\n\u003cdiv class=\"stars\"\u003e★★★★★\u003c\/div\u003e\n\u003cp\u003eComprei depois de testar 3 antenas baratas que nao pegavam nada aqui no vale. Essa Yagi com o amplificador fez diferenca do dia pra noite. Instalacao facil com o manual.\u003c\/p\u003e\n\u003cdiv class=\"author\"\u003e-- Expedito J., Guanambi\/BA\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"section faq\"\u003e\n\u003ch2\u003ePerguntas Frequentes\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eFunciona com qualquer TV?\u003c\/summary\u003e\u003cp\u003eSim. Funciona com qualquer TV que tenha entrada de antena (conector IEC 9,52 mm), incluindo Smart TVs, TVs antigas e aparelhos com conversor digital externo.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003ePreciso de conversor digital?\u003c\/summary\u003e\u003cp\u003eSe sua TV tem sintonizador ISDB-Tb (a maioria das TVs vendidas no Brasil desde 2011), nao precisa. Caso contrario, use um conversor digital externo -- qualquer modelo da Elsys, Aquario ou similar.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eComo instalar o amplificador?\u003c\/summary\u003e\u003cp\u003eO amplificador fica proximo a antena. O injetor de corrente (que vai junto ao cabo, perto da TV) injeta a alimentacao 5V pela propria coaxial. Basta conectar o injetor em qualquer saida USB da TV ou num carregador.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eA antena aguenta chuva e vento forte?\u003c\/summary\u003e\u003cp\u003eSim. O aluminio 6061-T6 anodizado e as pecas plasticas com tratamento UV sao projetados para instalacao externa permanente. O mastro incluido suporta ventos de ate 120 km\/h quando fixado corretamente.\u003c\/p\u003e\u003c\/details\u003e\u003cdetails\u003e\u003csummary\u003eFunciona com H.TV Box ou receptor Android?\u003c\/summary\u003e\u003cp\u003ePerfeitamente. Conecte o cabo coaxial a entrada ANT IN do seu H.TV Box ou qualquer receptor com sintonizador ISDB-Tb e faca a varredura automatica de canais.\u003c\/p\u003e\u003c\/details\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"cta-box\"\u003e\n\u003ch2\u003eAssista TV Aberta com Qualidade de Cinema\u003c\/h2\u003e\n\u003cp\u003eYagi externa amplificada para quem merece sinal perfeito -- no interior, no sitio ou onde a cidade ainda nao chegou.\u003c\/p\u003e\n\u003cdiv class=\"price-old\"\u003eDe R$ 199,00\u003c\/div\u003e\n\u003cdiv class=\"price-new\"\u003eR$ 139,00\u003c\/div\u003e\n\u003cdiv class=\"urgencia\"\u003eEstoque Limitado -- Garanta o Seu\u003c\/div\u003e\n\u003cdiv class=\"garantia\"\u003e\n\u003cstrong\u003eGarantia de 12 meses\u003c\/strong\u003e -- Produto com nota fiscal. Se tiver qualquer problema, substituimos sem custo.\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"H-tv Box Oficial","offers":[{"title":"Default Title","offer_id":47892886978781,"sku":"HTV-12","price":139.0,"currency_code":"BRL","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0828\/2229\/9869\/files\/156319-800-auto.png?v=1778199089","url":"https:\/\/h-tvboxoficial.com\/products\/antena-digital-externa-yagi-amplificada-uhf-vhf-hdtv-longo-alcance-com-mastro","provider":"H-tv Box Oficial","version":"1.0","type":"link"}