{"product_id":"shure-eight-channel-antenna-combiner-470-865-mhz","title":"Shure PA821B Antenna Combiner","description":"\u003cp dir=\"auto\"\u003eThe Shure PA821B is an active antenna combiner designed for multi-channel wireless systems. It combines up to eight antenna inputs into a single output, significantly reducing the number of antennas required in complex RF setups. This helps minimize antenna clutter while maintaining strong signal distribution to multiple receivers.\u003c\/p\u003e\n\u003cp dir=\"auto\"\u003eThe unit features a wideband design that supports multiple frequency bands and includes selectable input attenuation to optimize signal levels. It is ideal for large-scale wireless microphone systems in live sound, broadcast, theater, and installed AV environments where multiple transmitters and receivers operate simultaneously.\u003c\/p\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv dir=\"auto\"\u003e\n\u003ctable dir=\"auto\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth data-col-size=\"md\"\u003eFeature\u003c\/th\u003e\n\u003cth data-col-size=\"lg\"\u003eBenefit\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eCombines Up to Eight Antennas\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003eReduces antenna count and clutter in multi-channel wireless systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eWideband Operation\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003eSupports multiple frequency bands for flexible system design\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eSelectable Input Attenuation\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003eOptimizes signal levels and prevents overload\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eActive RF Distribution\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003eMaintains strong signal integrity to multiple receivers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eRackmount Design\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003eFits easily into standard 19-inch equipment racks\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eRobust Construction\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003eEnsures reliable performance in professional environments\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv dir=\"auto\"\u003e\n\u003ctable dir=\"auto\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth data-col-size=\"md\"\u003eSpecification\u003c\/th\u003e\n\u003cth data-col-size=\"lg\"\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eProduct Type\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003eActive Antenna Combiner\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eInput Channels\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003e8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eOutput\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eFrequency Range\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003eWideband (470–960 MHz, model dependent)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eRF Output Power\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003e+14 dBm (max)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eAttenuation\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003eSelectable per input\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003ePower Requirement\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003e100–240 V AC, 50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eDimensions\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003e44 x 483 x 366 mm (H x W x D)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eWeight\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003e4.8 kg (10.6 lbs)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eHousing\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003eSteel with extruded aluminum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\n\u003cdiv dir=\"auto\"\u003e\n\u003ctable dir=\"auto\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth data-col-size=\"md\"\u003eAspect\u003c\/th\u003e\n\u003cth data-col-size=\"lg\"\u003eShure PA821B\u003c\/th\u003e\n\u003cth data-col-size=\"lg\"\u003eShure PA821A\u003c\/th\u003e\n\u003cth data-col-size=\"md\"\u003eTypical Passive Combiner\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eChannels\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003e8\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003e8\u003c\/td\u003e\n\u003ctd data-col-size=\"md\"\u003eVaries\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eOperation\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003eActive\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003eActive\u003c\/td\u003e\n\u003ctd data-col-size=\"md\"\u003ePassive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eFrequency Range\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003eWideband\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003eWideband\u003c\/td\u003e\n\u003ctd data-col-size=\"md\"\u003eNarrower\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eAttenuation Control\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003eSelectable per input\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003eSelectable per input\u003c\/td\u003e\n\u003ctd data-col-size=\"md\"\u003eNone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003ePrimary Use\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003eLarge multi-channel systems\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003eLarge multi-channel systems\u003c\/td\u003e\n\u003ctd data-col-size=\"md\"\u003eSmaller setups\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd data-col-size=\"md\"\u003eRF Performance\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003eHigh signal integrity\u003c\/td\u003e\n\u003ctd data-col-size=\"lg\"\u003eHigh signal integrity\u003c\/td\u003e\n\u003ctd data-col-size=\"md\"\u003eSignal loss possible\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp dir=\"auto\"\u003e\u003cstrong\u003eFAQ\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul dir=\"auto\"\u003e\n\u003cli\u003e\n\u003cstrong\u003eWhat is the main purpose of the PA821B?\u003c\/strong\u003e It combines up to eight antenna inputs into one output to reduce antenna clutter in multi-channel wireless systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHow many inputs does it support?\u003c\/strong\u003e It supports eight antenna inputs.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs it active or passive?\u003c\/strong\u003e It is an active combiner that maintains strong signal integrity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDoes it support wide frequency ranges?\u003c\/strong\u003e Yes, it operates across a wideband frequency range for flexible system design.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIs it suitable for rack mounting?\u003c\/strong\u003e Yes, it is designed for standard 19-inch rack installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCan input levels be adjusted?\u003c\/strong\u003e Yes, it features selectable attenuation on each input to optimize signal levels.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv class=\"_tableContainer_1rjym_1\"\u003e\u003c\/div\u003e","brand":"Shure","offers":[{"title":"Default Title","offer_id":46792803123436,"sku":"PA821B","price":5180.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0603\/7982\/4364\/files\/CN_PA821BX.jpg?v=1759139686","url":"https:\/\/creationnetworks.net\/products\/shure-eight-channel-antenna-combiner-470-865-mhz","provider":"Creation Networks","version":"1.0","type":"link"}