{"product_id":"ch-antenna-combiner-865-960-mhz-taa","title":"Shure PA421BX Four-Channel Antenna Combiner 865–960 MHz (PA421BX-TA)","description":"\u003cp data-start=\"95\" data-end=\"542\"\u003eThe Shure PA421BX Antenna Combiner is engineered to streamline RF management in professional in-ear monitoring systems, delivering clean, efficient signal distribution for up to four transmitters through a single antenna. Designed for high-performance wireless environments, this unit minimizes intermodulation distortion and reduces rack clutter, making it ideal for touring, broadcast, and large-scale AV installations.\u003c\/p\u003e\n\u003cp data-start=\"544\" data-end=\"984\"\u003eOperating within the 865–960 MHz frequency range, the PA421BX ensures stable and reliable RF performance while supporting daisy-chaining for expanded system scalability. Built-in DC power distribution simplifies setup by powering compatible transmitters directly, reducing the need for additional cabling. With improved thermal efficiency and low-noise operation, this combiner maintains consistent performance even in demanding conditions.\u003c\/p\u003e\n\u003cp data-start=\"986\" data-end=\"1173\"\u003eIts robust design, clear LED indicators, and flexible integration capabilities make the PA421BX a dependable solution for optimizing wireless audio systems with precision and reliability.\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\u003e865 to 960 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupported Channels\u003c\/td\u003e\n\u003ctd\u003eCombines up to four transmitters\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRF Input Connector\u003c\/td\u003e\n\u003ctd\u003eBNC\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 ohms\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 ohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExpansion Port\u003c\/td\u003e\n\u003ctd\u003eBNC, passive configuration\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExpansion Capability\u003c\/td\u003e\n\u003ctd\u003eSupports daisy-chaining of up to two combiners\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eExpansion Port Insertion Loss\u003c\/td\u003e\n\u003ctd\u003eLess than 4 dB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRF Expansion Port Range\u003c\/td\u003e\n\u003ctd\u003eUp to 33 dBm (2 W)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Output Voltage\u003c\/td\u003e\n\u003ctd\u003e15 V DC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Output Current\u003c\/td\u003e\n\u003ctd\u003eUp to 660 mA per output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDC Output Power\u003c\/td\u003e\n\u003ctd\u003eUp to 9.9 W per output\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLED Indicators\u003c\/td\u003e\n\u003ctd\u003eSignal presence, overload, and current draw monitoring\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Requirements\u003c\/td\u003e\n\u003ctd\u003e100 to 240 V AC, 50–60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePower Consumption\u003c\/td\u003e\n\u003ctd\u003eMaximum 98 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Draw\u003c\/td\u003e\n\u003ctd\u003e1.09 A at 100 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating Temperature\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\u003eImpedance\u003c\/td\u003e\n\u003ctd\u003e50 ohms throughout system\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling Design\u003c\/td\u003e\n\u003ctd\u003eEnhanced low-noise fan for improved thermal efficiency\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\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eRF signal combining for in-ear monitoring systems\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e","brand":"Shure","offers":[{"title":"Default Title","offer_id":50808318099689,"sku":"PA421BX-TA","price":2312.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1706\/8839\/files\/1ff0865faed84046eef4e3825f5316b0.avif?v=1776253379","url":"https:\/\/www.avendor.com\/products\/ch-antenna-combiner-865-960-mhz-taa","provider":"Avendor","version":"1.0","type":"link"}