{"id":1192,"count":184,"description":"<p>Vysokofrekven\u010dn\u00ed technika tvo\u0159\u00ed p\u00e1te\u0159 modern\u00edch komunika\u010dn\u00edch s\u00edt\u00ed. Od z\u00e1kladnov\u00fdch stanic mobiln\u00edch s\u00edt\u00ed p\u0159es WLAN infrastruktury a\u017e po vysokofrekven\u010dn\u00ed m\u011b\u0159ic\u00ed techniku \u2013 vhodn\u011b zvolen\u00e9 ant\u00e9ny, kabely a vysokofrekven\u010dn\u00ed komponenty maj\u00ed z\u00e1sadn\u00ed vliv na v\u00fdkon syst\u00e9mu. Hodnoty \u00fatlumu, frekven\u010dn\u00ed rozsahy a impedan\u010dn\u00ed p\u0159izp\u016fsoben\u00ed mus\u00ed b\u00fdt p\u0159esn\u011b p\u0159izp\u016fsobeny dan\u00e9 aplikaci.<\/p><h2>P\u0159ehled produktov\u00fdch skupin<\/h2><ul><li><strong>Ant\u00e9ny<\/strong>: Vnit\u0159n\u00ed ant\u00e9ny pro Wi-Fi a budovou bezdr\u00e1tovou s\u00ed\u0165 (2,4\/5 GHz), venkovn\u00ed ant\u00e9ny se zv\u00fd\u0161en\u00fdm stupn\u011bm ochrany pro z\u00e1kladnov\u00e9 stanice mobiln\u00edch s\u00edt\u00ed. V\u0161e sm\u011brov\u00e9 ant\u00e9ny, sm\u011brov\u00e9 ant\u00e9ny a sektorov\u00e9 ant\u00e9ny pro r\u016fzn\u00e9 vzory pokryt\u00ed.<\/li><li><strong>Vysokofrekven\u010dn\u00ed komponenty<\/strong>: Tlumic\u00ed \u010dleny pro p\u0159izp\u016fsoben\u00ed \u00farovn\u011b (3\/6\/10\/20 dB), sm\u011brov\u00e9 odbo\u010dova\u010de pro odbo\u010den\u00ed sign\u00e1lu, filtry pro v\u00fdb\u011br frekvence. Impedance 50\/75 ohm\u016f v z\u00e1vislosti na pou\u017eit\u00ed.<\/li><li><strong>Odbo\u010dova\u010d\/rozd\u011blova\u010d\/spojka<\/strong>: Rozd\u011blova\u010de v\u00fdkonu a sign\u00e1lu pro syst\u00e9my s v\u00edce cestami. Asymetrick\u00e9 rozd\u011blova\u010de pro nerovnom\u011brn\u00e9 rozd\u011blen\u00ed, symetrick\u00e9 rozd\u011blova\u010de pro rovnom\u011brn\u00e9 rozd\u011blen\u00ed.<\/li><li><strong>Koaxi\u00e1ln\u00ed kabel<\/strong>: Typy RG podle normy MIL-C-17 (RG58, RG213, RG214), kabely s n\u00edzk\u00fdmi ztr\u00e1tami pro dlouh\u00e9 vzd\u00e1lenosti. Bezhalogenov\u00e9 proveden\u00ed podle normy IEC 60754 pro instalace v budov\u00e1ch.<\/li><li><strong>Detek\u010dn\u00ed kabel Radiaflex<\/strong>: Vyza\u0159ovac\u00ed koaxi\u00e1ln\u00ed kabel pro r\u00e1diovou komunikaci v tunelech a v dlouh\u00fdch budov\u00e1ch. Definovan\u00e1 vyza\u0159ovac\u00ed charakteristika po cel\u00e9 d\u00e9lce kabelu.<\/li><li><strong>Propojovac\u00ed kabel<\/strong>: P\u0159edem sestaven\u00e9 vysokofrekven\u010dn\u00ed propojovac\u00ed kabely s konektory typu N, SMA a BNC. F\u00e1zov\u011b pevn\u00e9 pro kritick\u00e9 aplikace.<\/li><\/ul><h2>Oblasti pou\u017eit\u00ed<\/h2><h3>Mobiln\u00ed s\u00ed\u0165ov\u00e1 infrastruktura<\/h3><p>Z\u00e1kladnov\u00e9 stanice a vys\u00edlac\u00ed za\u0159\u00edzen\u00ed pro GSM (900\/1800 MHz), UMTS (2100 MHz), LTE (800\/1800\/2600 MHz) a 5G (3500 MHz) vy\u017eaduj\u00ed p\u0159esn\u011b slad\u011bn\u00e9 vysokofrekven\u010dn\u00ed komponenty. Ant\u00e9ny s vysok\u00fdm ziskem, kabely s n\u00edzk\u00fdmi ztr\u00e1tami a filtry pro odd\u011blen\u00ed kan\u00e1l\u016f jsou kl\u00ed\u010dov\u00fdmi prvky. Komponenty vyhovuj\u00edc\u00ed norm\u011b AISG umo\u017e\u0148uj\u00ed d\u00e1lkov\u00e9 \u0159\u00edzen\u00ed parametr\u016f ant\u00e9n.<\/p><h3>Syst\u00e9my pro rozvod Wi-Fi<\/h3><p>Plo\u0161n\u00e9 pokryt\u00ed Wi-Fi v pr\u016fmyslov\u00fdch hal\u00e1ch, logistick\u00fdch centrech nebo ve\u0159ejn\u00fdch budov\u00e1ch je zalo\u017eeno na promy\u0161len\u00e9m pl\u00e1nov\u00e1n\u00ed vysokofrekven\u010dn\u00edho syst\u00e9mu. Sektorov\u00e9 ant\u00e9ny zaji\u0161\u0165uj\u00ed c\u00edlen\u00e9 pokryt\u00ed, zat\u00edmco rozbo\u010dova\u010de rozd\u011bluj\u00ed sign\u00e1l na n\u011bkolik p\u0159\u00edstupov\u00fdch bod\u016f. V\u00fdpo\u010det \u00fatlumu kabelov\u00fdch tras je pro stabiln\u00ed p\u0159ipojen\u00ed z\u00e1sadn\u00ed.<\/p><h3>Bezdr\u00e1tov\u00e9 s\u00edt\u011b v budov\u00e1ch a tunelov\u00e9 syst\u00e9my<\/h3><p>Vys\u00edlac\u00ed s\u00edt\u011b BOS, podnikov\u00e9 s\u00edt\u011b nebo ve\u0159ejn\u00e9 bezpe\u010dnostn\u00ed s\u00edt\u011b v budov\u00e1ch \u010dasto vyu\u017e\u00edvaj\u00ed syst\u00e9my s \u00fanikov\u00fdm kabelem. Vyza\u0159uj\u00edc\u00ed koaxi\u00e1ln\u00ed kabel rovnom\u011brn\u011b z\u00e1sobuje vysokofrekven\u010dn\u00edmi sign\u00e1ly dlouh\u00e9 tunely nebo spletit\u00e9 budovov\u00e9 komplexy. V kombinaci s opakova\u010di a obousm\u011brn\u00fdmi zesilova\u010di tak vznik\u00e1 bezmezerov\u00e9 r\u00e1diov\u00e9 pokryt\u00ed.<\/p><h3>Vysokofrekven\u010dn\u00ed m\u011b\u0159ic\u00ed technika a laborato\u0159<\/h3><p>P\u0159esn\u00e1 m\u011b\u0159en\u00ed vy\u017eaduj\u00ed kalibrovan\u00e9 vysokofrekven\u010dn\u00ed komponenty. Tlumi\u010de s p\u0159esn\u011b definovan\u00fdmi hodnotami, f\u00e1zov\u011b pevn\u00e9 kabely a vysoce kvalitn\u00ed zakon\u010dovac\u00ed odpory pat\u0159\u00ed k z\u00e1kladn\u00edmu vybaven\u00ed ka\u017ed\u00e9 vysokofrekven\u010dn\u00ed laborato\u0159e. Sm\u011brov\u00e9 odbo\u010dova\u010de umo\u017e\u0148uj\u00ed m\u011b\u0159en\u00ed p\u0159edn\u00edho a zp\u011btn\u00e9ho v\u00fdkonu bez p\u0159eru\u0161en\u00ed sign\u00e1lov\u00e9 cesty.<\/p><h2>Konstruk\u010dn\u00ed proveden\u00ed a normy<\/h2><p>Standardizace podle norem IEC 61169 a EN 50083 zaji\u0161\u0165uje kompatibilitu mezi v\u00fdrobci. Konektory typu N dominuj\u00ed v oblasti mobiln\u00edch komunikac\u00ed d\u00edky sv\u00e9mu v\u00fdkonu a\u017e do 11 GHz. Konektory SMA se pou\u017e\u00edvaj\u00ed v kompaktn\u00edch za\u0159\u00edzen\u00edch a m\u011b\u0159ic\u00edch sestav\u00e1ch a\u017e do 18 GHz. Konektory typu F podle normy DIN EN 60169-24 z\u016fst\u00e1vaj\u00ed standardem v satelitn\u00ed technice.<\/p><p>Specifikace kabel\u016f odpov\u00eddaj\u00ed norm\u011b MIL-C-17 pro typy RG nebo specifick\u00fdm norm\u00e1m v\u00fdrobc\u016f pro varianty s n\u00edzk\u00fdmi ztr\u00e1tami. Tlumen\u00ed st\u00edn\u011bn\u00ed se m\u011b\u0159\u00ed podle normy IEC 62153-4 \u2014 hodnoty nad 90 dB jsou nezbytn\u00e9 pro bezporuchov\u00fd provoz. Po\u017eadavky na po\u017e\u00e1rn\u00ed ochranu podle normy EN 50575 ur\u010duj\u00ed v\u00fdb\u011br kabel\u016f v budov\u00e1ch.<\/p><p>VSWR (Voltage Standing Wave Ratio) jako kl\u00ed\u010dov\u00fd parametr popisuje kvalitu p\u0159izp\u016fsoben\u00ed. Hodnoty pod 1,5:1 se pova\u017euj\u00ed za dobr\u00e9, profesion\u00e1ln\u00ed syst\u00e9my se sna\u017e\u00ed dos\u00e1hnout hodnoty pod 1,2:1. Intermodulace u aktivn\u00edch komponent mus\u00ed odpov\u00eddat syst\u00e9mov\u00fdm po\u017eadavk\u016fm \u2014 pro modern\u00ed mobiln\u00ed s\u00edt\u011b je typick\u00e1 hodnota -150 dBc.<\/p><h2>N\u00e1kup v segmentu B2B u spole\u010dnosti E.Hartner<\/h2><p>Atraktivn\u00ed odstup\u0148ovan\u00e9 ceny ze skladu ve V\u00eddni pro projekty jak\u00e9hokoli rozsahu. Technick\u00e9 poradenstv\u00ed ohledn\u011b optim\u00e1ln\u00edho v\u00fdb\u011bru komponent a n\u00e1vrhu syst\u00e9mu na vy\u017e\u00e1d\u00e1n\u00ed. Mo\u017enost expresn\u00edho doru\u010den\u00ed v p\u0159\u00edpad\u011b nal\u00e9hav\u00fdch roz\u0161\u00ed\u0159en\u00ed s\u00edt\u011b nebo oprav.<\/p>","link":"https:\/\/ehartner.com\/cs\/funktechnik\/","name":"Funktechnik","slug":"radiova-technika","taxonomy":"product_cat","parent":0,"meta":[],"menu_order":124,"_links":{"self":[{"href":"https:\/\/ehartner.com\/cs\/wp-json\/wp\/v2\/product_cat\/1192","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ehartner.com\/cs\/wp-json\/wp\/v2\/product_cat"}],"about":[{"href":"https:\/\/ehartner.com\/cs\/wp-json\/wp\/v2\/taxonomies\/product_cat"}],"wp:post_type":[{"href":"https:\/\/ehartner.com\/cs\/wp-json\/wp\/v2\/product?product_cat=1192"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}