{"id":3897,"date":"2023-03-30T18:37:25","date_gmt":"2023-03-30T18:37:25","guid":{"rendered":"https:\/\/csiag.eu\/?p=3897"},"modified":"2023-05-11T19:15:14","modified_gmt":"2023-05-11T19:15:14","slug":"radiovilnu-izplatisanas-vajinasanas","status":"publish","type":"post","link":"https:\/\/csiag.eu\/lv\/blog\/2023\/03\/30\/ausbreitung-daempfung-von-funkwellen\/","title":{"rendered":"Radio vi\u013c\u0146u izplat\u012b\u0161an\u0101s un v\u0101jin\u0101\u0161an\u0101s"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_86 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">Satura r\u0101d\u012bt\u0101js<\/p>\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/csiag.eu\/lv\/blog\/2023\/03\/30\/ausbreitung-daempfung-von-funkwellen\/#Historie\" >V\u0113sture<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/csiag.eu\/lv\/blog\/2023\/03\/30\/ausbreitung-daempfung-von-funkwellen\/#Ausbreitung\" >Izplat\u012bt<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/csiag.eu\/lv\/blog\/2023\/03\/30\/ausbreitung-daempfung-von-funkwellen\/#Dampfung\" >Amortiz\u0113\u0161ana<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/csiag.eu\/lv\/blog\/2023\/03\/30\/ausbreitung-daempfung-von-funkwellen\/#Kabel-_Verbinder-_Dampfungsverluste\" >Kabe\u013ca \/ savienot\u0101ja \/ v\u0101jin\u0101\u0161anas zudumi<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/csiag.eu\/lv\/blog\/2023\/03\/30\/ausbreitung-daempfung-von-funkwellen\/#WLAN_Richtfunkstrecke\" >WLAN\/radioreleja<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/csiag.eu\/lv\/blog\/2023\/03\/30\/ausbreitung-daempfung-von-funkwellen\/#Funkfeldstarke\" >Radio lauka stiprums<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/csiag.eu\/lv\/blog\/2023\/03\/30\/ausbreitung-daempfung-von-funkwellen\/#Schutzmasnahmen\" >Aizsardz\u012bbas pas\u0101kumi<\/a><\/li><\/ul><\/nav><\/div>\n<span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Las\u012b\u0161anas laiks<\/span> <span class=\"rt-time\"> 3<\/span> <span class=\"rt-label rt-postfix\">protokols<\/span><\/span>\n<p class=\"wp-block-paragraph\">Atkal un atkal tiek apspriests jaut\u0101jums par WLAN, radi\u0101cijas iedarb\u012bbu un ekran\u0113\u0161anu. Izpratne par radiovi\u013c\u0146u izplat\u012b\u0161anos un v\u0101jin\u0101\u0161anos pal\u012bdz ar\u012b darb\u0101 ar radiotehnolo\u0123ij\u0101m. \u0160\u0101 iemesla d\u0113\u013c turpm\u0101k sniegta s\u012bk\u0101ka inform\u0101cija, lai gan vispirms ir nepiecie\u0161ama pamatzin\u0101\u0161anas. T\u0101p\u0113c s\u0101kum\u0101 nedaudz sausas teorijas.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Historie\"><\/span>V\u0113sture<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">1886. gad\u0101 Heinrihs Hercs (Heinrich Hertz), kura v\u0101rd\u0101 tika nosaukta frekvences m\u0113rvien\u012bba (Hz), pirmais eksperiment\u0101li pier\u0101d\u012bja, ka past\u0101v elektromagn\u0113tiskie (radio) vi\u013c\u0146i, kurus 1867. gad\u0101 teor\u0113tiski paredz\u0113ja D\u017eeimss Kl\u0113rks Maksvels.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">1900. gada 20. mart\u0101 Nikola Tesla sa\u0146\u0113ma savu pirmo patentu bezvadu ener\u0123ijas p\u0101rraidei - radio tehnolo\u0123ijai.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Brauns un Markoni ir citi v\u0101rdi, kas saist\u012bti ar telegr\u0101fa att\u012bst\u012bbu, kas, izmantojot elektromagn\u0113tisko telegr\u0101fu un Morzesa alfab\u0113tu, kuru jau 1837. gad\u0101 izgudroja Samuels Finlijs Br\u012bzs Morze (Samuel Finley Breese Morse), \u013c\u0101va p\u0101rs\u016bt\u012bt zi\u0146ojumus l\u012bdz pat 3600 kilometru att\u0101lum\u0101.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Ausbreitung\"><\/span>Izplat\u012bt<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Elektromagn\u0113tisko vi\u013c\u0146u izplat\u012b\u0161an\u0101s ir atkar\u012bga no frekvences, topolo\u0123iskajiem un atmosf\u0113ras apst\u0101k\u013ciem.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Jonosf\u0113ras sl\u0101\u0146i (vid\u0113jais augstums aptuveni 1000 km), kas atrodas aiz troposf\u0113ras (17.. 17 km augstum\u0101) un stratosf\u0113ras (8.. 50 km augstum\u0101) tuvu zemei, var atstarot elektromagn\u0113tiskos vi\u013c\u0146us, pateicoties to joniz\u0101cijas pak\u0101pei, kas ir atkar\u012bga no Saules aktivit\u0101tes. Ekstr\u0113mos gad\u012bjumos tikko p\u0101rraid\u012bto sign\u0101lu var atkal uztvert taj\u0101 pa\u0161\u0101 viet\u0101, atk\u0101rtoti atstarojot to ap zemeslodi (apk\u0101rtm\u0113rs aptuveni 40 000 km), kas aizkav\u0113jas par tranz\u012bta laiku (300 000 km\/s).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Virs aptuveni 60 MHz radio vi\u013c\u0146i izplat\u0101s k\u0101 gaisma. \u0160\u0137\u0113r\u0161\u013ci tos var atstarot un atstarot. Jo \u012bpa\u0161i virs 100 MHz radiovi\u013c\u0146u izplat\u012b\u0161anos aizvien vair\u0101k trauc\u0113 atstarojumi. Visnelabv\u0113l\u012bg\u0101kaj\u0101 gad\u012bjum\u0101 vi\u013c\u0146u vi\u013c\u0146i un vi\u013c\u0146u vi\u013c\u0146u vi\u013c\u0146i var viens otru izjaukt.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"D\u00e4mpfung\"><span class=\"ez-toc-section\" id=\"Dampfung\"><\/span>Amortiz\u0113\u0161ana<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">V\u0101jin\u0101jums ir sign\u0101la v\u0101jin\u0101jums. V\u0101jin\u0101jumu m\u0113ra decibelos (dB) vai decibelos milivatos (dBm), vai, ja jauda ir liel\u0101ka, decibelos vatos (dBW) logaritmisk\u0101 form\u0101, lai var\u0113tu praktiski vizualiz\u0113t augst\u0101kus l\u012bme\u0146us.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Ir svar\u012bgi at\u0161\u0137irt v\u0101jin\u0101juma r\u0101d\u012bt\u0101jus procentos un dB, ska\u0146as db(A) gad\u012bjum\u0101 \"A\" noz\u012bm\u0113 cilv\u0113ka dzirdes l\u012bknei piel\u0101gotu ska\u013cumu (\u0146emot v\u0113r\u0101 to, ka augstas un zemas ska\u0146as pie vien\u0101da ska\u013cuma tiek uztvertas at\u0161\u0137ir\u012bgi).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Decibeli parasti nor\u0101da uz pastiprin\u0101juma v\u0113rt\u012bbu, t. i., \u0161\u012b v\u0113rt\u012bba ir pozit\u012bva. T\u0101p\u0113c negat\u012bva z\u012bme raksturo v\u0101jin\u0101\u0161anos.<br>100 dB apz\u012bm\u0113 100 000 rei\u017eu liel\u0101ku ska\u0146as spiedienu nek\u0101 0 dB jeb ska\u0146as spiedienu 2 pa (pask\u0101li).<\/p>\n\n\n\n<table id=\"tablepress-2\" class=\"tablepress tablepress-id-2\">\n<thead>\n<tr class=\"row-1\">\n\t<th class=\"column-1\">Trok\u0161\u0146i<\/th><th class=\"column-2\">db(A)<\/th><th class=\"column-3\">Ekran\u0113\u0161ana (dB)<\/th><th class=\"column-4\">%<\/th>\n<\/tr>\n<\/thead>\n<tbody class=\"row-striping row-hover\">\n<tr class=\"row-2\">\n\t<td class=\"column-1\">Cirkul\u0101rais z\u0101\u0123is<\/td><td class=\"column-2\">90<\/td><td class=\"column-3\">10<\/td><td class=\"column-4\">90<\/td>\n<\/tr>\n<tr class=\"row-3\">\n\t<td class=\"column-1\">Autoce\u013cu dienas<\/td><td class=\"column-2\">80<\/td><td class=\"column-3\">20<\/td><td class=\"column-4\">99<\/td>\n<\/tr>\n<tr class=\"row-4\">\n\t<td class=\"column-1\">Galven\u0101 iela dienas laik\u0101<\/td><td class=\"column-2\">70<\/td><td class=\"column-3\">30<\/td><td class=\"column-4\">99,9<\/td>\n<\/tr>\n<tr class=\"row-5\">\n\t<td class=\"column-1\">Galvenais ce\u013c\u0161 nakt\u012b<\/td><td class=\"column-2\">60<\/td><td class=\"column-3\">40<\/td><td class=\"column-4\">99,99<\/td>\n<\/tr>\n<tr class=\"row-6\">\n\t<td class=\"column-1\">S\u0101nu iela dienas laik\u0101<\/td><td class=\"column-2\">50<\/td><td class=\"column-3\">50<\/td><td class=\"column-4\">99,999<\/td>\n<\/tr>\n<tr class=\"row-7\">\n\t<td class=\"column-1\">Blakusce\u013c\u0161 nakt\u012b<\/td><td class=\"column-2\">40<\/td><td class=\"column-3\">60<\/td><td class=\"column-4\">99,999.9<\/td>\n<\/tr>\n<tr class=\"row-8\">\n\t<td class=\"column-1\">Pulkste\u0146a iz\u0161uvumi<\/td><td class=\"column-2\">30<\/td><td class=\"column-3\">70<\/td><td class=\"column-4\">99,999.99<\/td>\n<\/tr>\n<tr class=\"row-9\">\n\t<td class=\"column-1\">Lapu troksnis<\/td><td class=\"column-2\">20<\/td><td class=\"column-3\">80<\/td><td class=\"column-4\">99,999.999<\/td>\n<\/tr>\n<tr class=\"row-10\">\n\t<td class=\"column-1\">Elpo\u0161anas ska\u0146a<\/td><td class=\"column-2\">10<\/td><td class=\"column-3\">90<\/td><td class=\"column-4\">99,999.999.9<\/td>\n<\/tr>\n<tr class=\"row-11\">\n\t<td class=\"column-1\">Klusums<\/td><td class=\"column-2\">0<\/td><td class=\"column-3\">100<\/td><td class=\"column-4\">99,999.999.99<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<!-- #tablepress-2 from cache -->\n\n\n<p class=\"wp-block-paragraph\">Lai g\u016btu priek\u0161statu par to, cik liela ir radio vi\u013c\u0146u caurlaid\u012bbas sp\u0113ja, tiek sal\u012bdzin\u0101ti \u0113kas griesti, kuru biezums nep\u0101rsniedz 30 cm (70%), ar stiep\u013cu sietu, kura biezums nep\u0101rsniedz 1 mm (100%), vai \u0123ip\u0161kartona starpsienu, kuras biezums nep\u0101rsniedz 10 cm (10%).<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Kabel-_Verbinder-_Dampfungsverluste\"><\/span>Kabe\u013ca \/ savienot\u0101ja \/ v\u0101jin\u0101\u0161anas zudumi<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ja radiovi\u013c\u0146i, piem\u0113ram, ce\u013c\u0101 no radioapar\u0101ta uz antenu, iet cauri kabe\u013ciem, kontaktiem, savienojumiem u. c., ar\u012b \u0161eit rodas v\u0101jin\u0101\u0161an\u0101s zudumi. Izmantot\u0101 antenas kabe\u013ca veids un garums, k\u0101 ar\u012b kontaktdak\u0161u savienojumi nosaka kop\u0113jo v\u0101jin\u0101\u0161an\u0101s zudumu lielumu.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Parasti v\u0101jin\u0101\u0161an\u0101s zudumu summa nedr\u012bkst p\u0101rsniegt antenas pastiprin\u0101jumu. Atsevi\u0161\u0137i komponenti j\u0101izv\u0113las atbilsto\u0161i.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Izv\u0113loties antenas kabeli, j\u0101\u0146em v\u0113r\u0101 ar\u012b kabe\u013ca veids - v\u012bt\u0146vads vai ciets vads, ekran\u0113jums, apvalka konstrukcija, garums un izmantojam\u0101 frekvence. Iz\u0161\u0137iro\u0161a noz\u012bme ir ar\u012b struktur\u0101lajam lietojumam: halog\u0113na kabe\u013ci ir karstumiztur\u012bgi un ugunsdro\u0161i, rievotie kabe\u013ci tiek izmantoti uzst\u0101d\u012b\u0161anai tune\u013cos.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"WLAN_Richtfunkstrecke\"><\/span>WLAN\/radioreleja<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">WLAN ir pieejamas 2,4 GHz, 5 un 6 GHz, k\u0101 ar\u012b 24 un 60 GHz frekvences. Ja v\u0113laties, lai t\u0101lvad\u012bbas diapazons caur sien\u0101m un griestiem b\u016btu liels, izv\u0113lieties zem\u0101k\u0101s frekvences, t. i., 2,4 GHz. T\u0101m ir diapazons savrupm\u0101jas iek\u0161ien\u0113. Ja m\u0101ja ir divst\u0101vu m\u0101ja, paturiet pr\u0101t\u0101, ka tas ir pietiekams ar\u012b kaimi\u0146am. Ja v\u0113laties augstu datu p\u0101rraides \u0101trumu nelielos att\u0101lumos, izmantojiet 5 GHz frekvenci, jo t\u0101 tik tikko iespie\u017eas gr\u012bd\u0101 vai griestos. Tas pats attiecas uz 6 GHz joslu.<br>Savuk\u0101rt 24 un 60 GHz frekven\u010du diapazons nodro\u0161ina 200 ... 1.000 m. Redzam\u012bbas l\u012bnija \u0161eit ir priek\u0161noteikums. Lietus, migla, snig\u0161ana u. c. var rad\u012bt caurlaidsp\u0113jas zudumus, ko da\u013c\u0113ji var kompens\u0113t ar tehniskiem piesardz\u012bbas pas\u0101kumiem.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Funkfeldstarke\"><\/span>Radio lauka stiprums<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Elektroiek\u0101rtu radio lauka intensit\u0101te ir 1 ... 2 mW, radiol\u012bnijas aptuveni 10 mW, WLAN 2,4 GHz frekvenc\u0113 - 100 mW, 5 GHz frekvenc\u0113 - 200 mW, mikrovi\u013c\u0146u kr\u0101sns - 800 mW un mobil\u0101 t\u0101lru\u0146a - 2000 mW.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Kopum\u0101 augstfrekvences elektromagn\u0113tiskajiem laukiem piem\u0113ro robe\u017ev\u0113rt\u012bbas, kas raksturo t\u0101 saukto SAR (Specific Absorption Rate - \u012bpatn\u0113jais absorbcijas koeficients), kura ener\u0123ijas pat\u0113ri\u0146\u0161 cilv\u0113ka audos ir pie\u013caujams.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Vid\u0113ji visam cilv\u0113ka \u0137ermenim ir 0,08 W\/kg, bet attiec\u012bb\u0101 uz atsevi\u0161\u0137\u0101m zon\u0101m, piem\u0113ram, galvu (mobilais t\u0101lrunis) - 2 W\/kg.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Mobilais t\u0101lrunis uz auss jau pak\u013cauj organismu maksim\u0101lajai pie\u013caujamajai slodzei.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Jut\u012bgiem cilv\u0113kiem elektromagn\u0113tisk\u0101 starojuma iedarb\u012bba var izrais\u012bt asinsspiediena trauc\u0113jumus, depresiju, hormon\u0101lus trauc\u0113jumus, im\u016bnsist\u0113mas nom\u0101kumu, koncentr\u0113\u0161an\u0101s trauc\u0113jumus, galvass\u0101pes, nogurumu, miega trauc\u0113jumus, reiboni, sliktu d\u016b\u0161u un nemieru.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Schutzmasnahmen\"><\/span>Aizsardz\u012bbas pas\u0101kumi<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Izv\u0113lieties WLAN mar\u0161rut\u0113t\u0101ja atra\u0161an\u0101s vietu p\u0113c iesp\u0113jas t\u0101l\u0101k no darba vietas.<\/li>\n\n\n\n<li>Izmantojiet frekven\u010du joslu atbilsto\u0161i faktiskaj\u0101m pras\u012bb\u0101m.<\/li>\n\n\n\n<li>Deaktiviz\u0113t WLAN, ja tas netiek izmantots. <\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Ja v\u0113laties pasarg\u0101t sevi no \u0101r\u0113j\u0101s elektromagn\u0113tisk\u0101 starojuma iedarb\u012bbas, varat izveidot savu m\u0101jokli k\u0101 Faradeja b\u016bru. \u0160\u0101d\u0101 gad\u012bjum\u0101 zem sienu pane\u013ciem\/tapet\u0113m vai speci\u0101l\u0101m EMC tapet\u0113m ar met\u0101la p\u0101rkl\u0101jumu tiek novietotas pl\u0101nas met\u0101la sieta, vara folijas vai, ja nepiecie\u0161ams, alum\u012bnija folijas loksnes. Ir svar\u012bgi, lai katrai loksnei b\u016btu elektriskais kontakts ar blakus eso\u0161o loksni, lai ar\u012b logu stikli b\u016btu metaliz\u0113ti un lai ar\u012b \u0161is sl\u0101nis b\u016btu savienots ar sienas ekran\u0113jumu.<br>Lai nodro\u0161in\u0101tu pareizu zem\u0113jumu, visa instal\u0101cija ir j\u0101pievieno \u0113kas potenci\u0101lu izl\u012bdzin\u0101\u0161anas sist\u0113mai.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">T\u0101d\u0113j\u0101di \u0161\u012b telpa ir pasarg\u0101ta no \u0101r\u0113j\u0101s elektromagn\u0113tisk\u0101s iedarb\u012bbas; otr\u0101di, WLAN mar\u0161rut\u0113t\u0101ja radiosatiksme \u0161aj\u0101 telp\u0101 b\u016btu pasarg\u0101ta no \u0101r\u0113jiem noklaus\u012bt\u0101jiem.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Elektrosmoga un aizsargl\u012bdzek\u013cu tehnolo\u0123iju t\u0113ma ir apl\u016bkota \u0161aj\u0101 dokument\u0101. <a href=\"https:\/\/csiag.eu\/lv\/elektrosmogs\/\" data-type=\"post\" data-id=\"4186\" target=\"_blank\" rel=\"noreferrer noopener\">Iemaksas<\/a> apstr\u0101d\u0101 atsevi\u0161\u0137i.<\/p>\n\n\n\n<p class=\"has-text-color wp-block-paragraph\" style=\"color:#fe0000\">Visus darbus, kas saist\u012bti ar elektriskaj\u0101m sist\u0113m\u0101m, dr\u012bkst veikt tikai kvalific\u0113ts person\u0101ls!<\/p>","protected":false},"excerpt":{"rendered":"<p><span class=\"span-reading-time rt-reading-time\" style=\"display: block;\"><span class=\"rt-label rt-prefix\">Las\u012b\u0161anas laiks<\/span> <span class=\"rt-time\"> 3<\/span> <span class=\"rt-label rt-postfix\">protokols<\/span><\/span>Atkal un atkal tiek apspriests jaut\u0101jums par WLAN, radi\u0101cijas iedarb\u012bbu un ekran\u0113\u0161anu. Izpratne par radiovi\u013c\u0146u izplat\u012b\u0161anos un v\u0101jin\u0101\u0161anos pal\u012bdz ar\u012b darb\u0101 ar radiotehnolo\u0123ij\u0101m. \u0160\u0101 iemesla d\u0113\u013c turpm\u0101k sniegta s\u012bk\u0101ka inform\u0101cija, lai gan vispirms ir nepiecie\u0161ama pamatzin\u0101\u0161anas. T\u0101p\u0113c s\u0101kum\u0101 nedaudz sausas teorijas. V\u0113sture Heinrihs Hercs (Heinrich Hertz), p\u0113c frekvences m\u0113rvien\u012bbas (Hz)...&nbsp;<a href=\"https:\/\/csiag.eu\/lv\/blog\/2023\/03\/30\/ausbreitung-daempfung-von-funkwellen\/\" rel=\"bookmark\">Las\u012bt vair\u0101k \"<span class=\"screen-reader-text\">Radio vi\u013c\u0146u izplat\u012b\u0161an\u0101s un v\u0101jin\u0101\u0161an\u0101s<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_lmt_disableupdate":"","_lmt_disable":"","neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","footnotes":""},"categories":[359,1302,345,358,357],"tags":[566,1326,1304,1340,1312,1305,1325,1319,1331,1341,1318,1323,1333,1349,1350,557,1336,1324,1307,1306,1335,1328,1310,1342,1317,1343,1344,1322,1313,1311,1351,1338,1337,1309,1345,1352,514,1330,1339,1327,1346,1329,1334,1347,1332,1320,1303,1316,1314,1308,1315,1101,1348,1321,563],"class_list":["post-3897","post","type-post","status-publish","format-standard","hentry","category-cb-funk-im-wohnmobil","category-funktechnik","category-kommunikation-lte","category-verbindung-zu-wlan-access-points","category-wlan-richtfunk-technik","tag-antenne","tag-antennengewinn","tag-ausbreitung","tag-blutdruckdysregulation","tag-braun","tag-daempfung","tag-daempfungsverluste","tag-daempfungsvermoegen","tag-datenraten","tag-depressionen","tag-dezibel","tag-drahtgewebe","tag-dunst","tag-faraday","tag-faradayscher-kaefig","tag-frequenz","tag-funkfeldstaerke","tag-funkgeraet","tag-funktechnik","tag-funkwellen","tag-grenzwerte","tag-halogenkabel","tag-hertz","tag-immunsupression","tag-ionosphaere","tag-konzentrationsstoerungen","tag-kopfschmerzen","tag-kupplung","tag-marconi","tag-maxwell","tag-metallbedampft","tag-mikrowelle","tag-mobiltelefons","tag-morse","tag-muedigkeit","tag-potenzialausgleich","tag-regen","tag-richtfunkstrecken","tag-sar","tag-schirmung","tag-schlafstoerungen","tag-schlitzkabel","tag-schneefall","tag-schwindel","tag-sichtverbindung","tag-stecker","tag-strahlungsbelastung","tag-stratosphaere","tag-telegrafen","tag-telegrafie","tag-troposphaere","tag-uebelkeit","tag-unruhe","tag-verbinder","tag-wlan"],"modified_by":"Achim Goerner","_links":{"self":[{"href":"https:\/\/csiag.eu\/lv\/wp-json\/wp\/v2\/posts\/3897","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/csiag.eu\/lv\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/csiag.eu\/lv\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/csiag.eu\/lv\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/csiag.eu\/lv\/wp-json\/wp\/v2\/comments?post=3897"}],"version-history":[{"count":0,"href":"https:\/\/csiag.eu\/lv\/wp-json\/wp\/v2\/posts\/3897\/revisions"}],"wp:attachment":[{"href":"https:\/\/csiag.eu\/lv\/wp-json\/wp\/v2\/media?parent=3897"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/csiag.eu\/lv\/wp-json\/wp\/v2\/categories?post=3897"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/csiag.eu\/lv\/wp-json\/wp\/v2\/tags?post=3897"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}