{"id":76,"date":"2009-07-01T20:43:58","date_gmt":"2009-07-01T23:43:58","guid":{"rendered":"http:\/\/blog.sarmento.eng.br\/2009\/07\/01\/receptores-de-comunicacao-icom-r-75-made-in-japan\/"},"modified":"2009-09-26T08:50:54","modified_gmt":"2009-09-26T11:50:54","slug":"receptores-de-comunicacao-icom-r-75-made-in-japan","status":"publish","type":"post","link":"https:\/\/radio.sarmento.eng.br\/?p=76","title":{"rendered":"Receptores de Comunica\u00e7\u00e3o &#8211; Icom R-75 Made in Japan"},"content":{"rendered":"<p>A Icom \u00e9 um fabricante tradicional de produtos para telecomunica\u00e7\u00f5es, em particular, desenvolve e produz r\u00e1dio receptores para diveras aplica\u00e7\u00f5es, desde equipamentos para uso militar e governamental, como r\u00e1dios transceptores para r\u00e1dio amadores e receptores de comunica\u00e7\u00f5es para radioescutas.<\/p>\n<p>O modelo Icom R-75 \u00e9 fabricado desde o ano 2000, e \u00e9 atualmente o equipamento com a melhor rela\u00e7\u00e3o custo e benef\u00edcio. Al\u00e9m de extremamente eficiente e repleto de recursos tecnol\u00f3gicos, apresenta custo acess\u00edvel.<\/p>\n<p>Este r\u00e1dio na Universal Radio custa US$ 600,00 sem nenhum opcional (filtros, m\u00f3dulo DSP ect) nos Estados Unidos.<\/p>\n<p>No Brasil pode ser encontrado na R\u00e1dioHaus ou na Lojinha do R\u00e1dioescuta por pre\u00e7os que variam de R$ 2.300 a R$ 2.700 dependendo dos opcionais e da varia\u00e7\u00e3o da cota\u00e7\u00e3o do d\u00f3lar.<\/p>\n<p>Al\u00e9m da qualidade &#8220;Made in Japan&#8221; este r\u00e1dio apresenta atributos de sensibilidade e seletividade excepcionais, al\u00e9m de contar com filtros opcionais bem eficientes recursos importantes como &#8220;pass band tunning&#8221; e desempenho topo de linha em recep\u00e7\u00e3o utilizando o modo SSB.<\/p>\n<p>Devido a suas dimens\u00f5es reduzidas, ainda pode ser considerado ideal para uso em locais remotos, especialmente em locais que favore\u00e7am a recep\u00e7\u00e3o de sinais de r\u00e1dio &#8211; normalmente ao largo dos grandes centros urbanos &#8211; e pode ser operado por uma bateria automotiva de 12 Volts.<\/p>\n<p><img decoding=\"async\" src=\"http:\/\/www.icomamerica.com\/images\/IcomLogo.gif\" alt=\"Icom \" \/><\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.sarmento.eng.br\/Figuras\/ic-r75.jpg\" alt=\"Icom R-75\" \/><\/p>\n<p><strong>Especifica\u00e7\u00f5es<\/strong><\/p>\n<p>Frequency coverage\t 0.03\u201360.000000 MHz*<br \/>\n*0.03\u201329.999999 MHz only for Asia version; specifications guaranteed 0.1\u201329.99 MHz and 50\u201354 MHz only.<br \/>\nMode\t USB, LSB, CW, RTTY, AM, FM<\/p>\n<p>Number of memory channels\t 101 (99 regular, 2 scan edges)<br \/>\nFrequency stability\t Less than \u00b17 ppm from 1 min. to 60 min. after<br \/>\npower on. After that rate of stability less than \u00b11<br \/>\nppm\/hr. at +25\u00b0C (+77\u00b0F). Temperature fluctuations<br \/>\n0\u00b0C to +50\u00b0C (+32\u00b0F to +122\u00b0F) less than \u00b15 ppm.<br \/>\nPower supply requirement\t 13.8 V DC \u00b115% (negative ground)<br \/>\nCurrent drain (at 13.8 V DC)<br \/>\nStandby<br \/>\nMax. audio<br \/>\n0.9 A<br \/>\n1.1 A<\/p>\n<p>Antenna connector\t SO-239 (50 \u03a9), push connection terminal (500 \u03a9)<br \/>\nDimensions\t 241(W) \u00d7 94(H) \u00d7 229(D) mm<br \/>\n91\u20442(W) \u00d7 31\u204416(H) \u00d7 91\u204432(D) in<br \/>\nWeight (approx.)\t 3.0 kg; 6 lb 10 oz<br \/>\nREMOTE connector\t RS-232C D-sub 9-pin<br \/>\nCI-V connector\t 2-conductor 3.5 (d) mm (1\u20448\u2033)<\/p>\n<p>Receiver<br \/>\nReceive system\t Triple-conversion super heterodyne system<\/p>\n<p>Intermediate frequencies<br \/>\n \t 1st (MHz)\t 2nd (MHz)\t 3rd (kHz)<br \/>\nUSB*\/LSB*\t 69.0115\t 9.0115\t 455<br \/>\nCW*\t 69.0106\t 9.0106\t 455.9<br \/>\nRTTY*\t 69.0105\t 9.0105\t 456<br \/>\nAM*\t 69.0100\t 9.0100\t 450<br \/>\nFM*\t 69.0115\t 9.0115\t 450<br \/>\n*May differ according to selected IF filter.<\/p>\n<p>Sensitivity<br \/>\nFrequency Range<br \/>\nSSB\/CW\/RTTY<br \/>\n10 dB S\/N<br \/>\nAM<br \/>\n10 dB S\/N<br \/>\nFM<br \/>\n12 dB SINAD<br \/>\n0.1\u20131.8 MHz*1\t 2.0 \u03bcV\t 5.6 \u03bcV\t \u2014<br \/>\n1.8\u201328 MHz*2\t 0.16 \u03bcV\t 1.6 \u03bcV\t \u2014<br \/>\n28\u201329.99 MHz*2\t 0.16 \u03bcV\t 1.6 \u03bcV\t 0.22 \u03bcV<br \/>\n50\u201354 MHz*3\t 0.13 \u03bcV\t 1.0 \u03bcV\t 0.2 \u03bcV<\/p>\n<p>*1 Preamp: OFF; *2 Preamp 1: ON; *3 Preamp 2: ON<br \/>\nSQL sensitivity (threshold)<br \/>\nSSB, CW, RTTY\t Less than 5.6 \u03bcV*1<br \/>\nFM\t Less than 0.32 \u03bcV *2<br \/>\n*1 Preamp 1: ON<br \/>\n*2 Preamp 2: ON<\/p>\n<p>Selectivity<br \/>\nSSB, CW, RTTY<\/p>\n<p>AM<\/p>\n<p>FM<br \/>\nMore than 2.1 kHz\/\u20136 dB<br \/>\nLess than 4.0 kHz\/\u201360 dB<br \/>\nMore than 6 kHz\/\u20136 dB<br \/>\nLess than 20 kHz\/\u201350 dB<br \/>\nMore than 12 kHz\/\u20136 dB<br \/>\nLess than 30 kHz\/\u201340 dB<br \/>\nSpurious and image rejection ratio\t More than 70 dB (except IF through\/50 MHz band)<\/p>\n<p>Audio output power\t More than 2.0 W at 10% distortion with an 8\u03a9 load<br \/>\nPHONES connector\t 3-conductor 6.35 (d) mm (1\u20444\u2033)<br \/>\nExternal SP connector\t 2-conductor 3.5 (d) mm (1\u20448\u2033)\/8\u03a9<\/p>\n<p><img decoding=\"async\" src=\"https:\/\/www.sarmento.eng.br\/Figuras\/r75_3.jpg\" alt=\"Icom R-75\" \/><br \/>\n<code><br \/>\n<script type=\"text\/javascript\">\nvar gaJsHost = ((\"https:\" == document.location.protocol) ? \"https:\/\/ssl.\" : \"http:\/\/www.\");\ndocument.write(unescape(\"%3Cscript src='\" + gaJsHost + \"google-analytics.com\/ga.js' type='text\/javascript'%3E%3C\/script%3E\"));\n<\/script><\/p>\n<p><script type=\"text\/javascript\">\ntry {var pageTracker = _gat._getTracker(\"UA-7192117-1\");\npageTracker._trackPageview();\n} catch(err) {};\n<\/script><br \/>\n<\/code><\/p>\n","protected":false},"excerpt":{"rendered":"<p>A Icom \u00e9 um fabricante tradicional de produtos para telecomunica\u00e7\u00f5es, em particular, desenvolve e produz r\u00e1dio receptores para diveras aplica\u00e7\u00f5es, desde equipamentos para uso militar e governamental, como r\u00e1dios transceptores para r\u00e1dio amadores e receptores de comunica\u00e7\u00f5es para radioescutas. O &hellip; <a href=\"https:\/\/radio.sarmento.eng.br\/?p=76\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[9],"tags":[],"class_list":["post-76","post","type-post","status-publish","format-standard","hentry","category-receptores"],"_links":{"self":[{"href":"https:\/\/radio.sarmento.eng.br\/index.php?rest_route=\/wp\/v2\/posts\/76","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/radio.sarmento.eng.br\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/radio.sarmento.eng.br\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/radio.sarmento.eng.br\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/radio.sarmento.eng.br\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=76"}],"version-history":[{"count":0,"href":"https:\/\/radio.sarmento.eng.br\/index.php?rest_route=\/wp\/v2\/posts\/76\/revisions"}],"wp:attachment":[{"href":"https:\/\/radio.sarmento.eng.br\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=76"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/radio.sarmento.eng.br\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=76"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/radio.sarmento.eng.br\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=76"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}