{"product_id":"eight-channel-antenna-combiner-470-865-mhz","title":"Shure PA821B Eight-Port Antenna Combiner for PSM Systems","description":"\u003cp data-start=\"92\" data-end=\"487\"\u003eThe Shure PA821B Eight-Port Antenna Combiner is a professional-grade RF management solution designed to streamline and optimize multi-channel in-ear monitoring systems. Built for use with Shure PSM personal monitor transmitters, this combiner allows up to eight transmitters to share a single antenna, significantly reducing rack clutter while improving RF performance.\u003c\/p\u003e\n\u003cp data-start=\"489\" data-end=\"892\"\u003eEngineered for reliability in demanding live sound, broadcast, and touring environments, the PA821B enhances signal clarity by minimizing intermodulation artifacts and maintaining a clean RF spectrum. Its wideband frequency support ensures compatibility across a broad range of wireless setups, while the integrated LED indicators provide real-time monitoring of signal presence and overload conditions.\u003c\/p\u003e\n\u003cp data-start=\"894\" data-end=\"1078\"\u003eWith expansion capabilities, improved thermal efficiency, and quiet operation, the PA821B is an essential component for centralized RF distribution in professional audio installations.\u003c\/p\u003e\n\u003ctable\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Range\u003c\/td\u003e\n\u003ctd\u003e470–865 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Systems\u003c\/td\u003e\n\u003ctd\u003eShure PSM Personal Monitor Systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Inputs\u003c\/td\u003e\n\u003ctd\u003e8 RF inputs (BNC)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRF Input Configuration\u003c\/td\u003e\n\u003ctd\u003eActive\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRF Input Impedance\u003c\/td\u003e\n\u003ctd\u003e50 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRF Gain\u003c\/td\u003e\n\u003ctd\u003e0 dB (±2 dB)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMain Output Connector\u003c\/td\u003e\n\u003ctd\u003eBNC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMain Output Impedance\u003c\/td\u003e\n\u003ctd\u003e50 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExpansion Port\u003c\/td\u003e\n\u003ctd\u003eBNC (Passive)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExpansion Port Impedance\u003c\/td\u003e\n\u003ctd\u003e50 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExpansion Port Insertion Loss\u003c\/td\u003e\n\u003ctd\u003e\u0026lt; 4 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExpansion Port Max Operating Range\u003c\/td\u003e\n\u003ctd\u003e33 dBm (2 W)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLED Indicators\u003c\/td\u003e\n\u003ctd\u003eSignal presence and overload detection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMinimum Detection Threshold\u003c\/td\u003e\n\u003ctd\u003e2.5 dBm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverload Threshold\u003c\/td\u003e\n\u003ctd\u003eGreater than 24 dBm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Requirements\u003c\/td\u003e\n\u003ctd\u003e100–240 V AC, 50–60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Draw\u003c\/td\u003e\n\u003ctd\u003e1.59 A at 100 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaximum Power Consumption\u003c\/td\u003e\n\u003ctd\u003e143 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature Range\u003c\/td\u003e\n\u003ctd\u003e-18°C to 63°C (0°F to 145°F)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDaisy-Chain Capability\u003c\/td\u003e\n\u003ctd\u003eSupports linking up to 2 combiners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThermal Design\u003c\/td\u003e\n\u003ctd\u003eEnhanced cooling with low-noise fan\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIncluded Accessories\u003c\/td\u003e\n\u003ctd\u003eIEC power cord, DC power cables, BNC coaxial cables\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOptional Accessories\u003c\/td\u003e\n\u003ctd\u003eDirectional\/omnidirectional antennas, helical antennas, additional coaxial cables\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Shure","offers":[{"title":"Default Title","offer_id":50808434163945,"sku":"PA821B","price":5180.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1706\/8839\/files\/1494422479_1337077.jpg?v=1776144607","url":"https:\/\/www.avendor.com\/products\/eight-channel-antenna-combiner-470-865-mhz","provider":"Avendor","version":"1.0","type":"link"}