{"product_id":"sinclair-q-2222e-2-vhf-duplexer-160-174-mhz","title":"Sinclair Q-2222E-2 VHF Duplexer 160-174 MHz","description":"\u003cdiv class=\"product-content\"\u003e\n\u003csection class=\"who-its-for\"\u003e\u003ch1\u003eSinclair Q-2222E-2 VHF Duplexer 160-174 MHz\u003c\/h1\u003e\n\u003cp\u003eThe \u003cstrong\u003eSinclair Q-2222E-2 duplexer\u003c\/strong\u003e is a compact, high-performance \u003cstrong\u003eQ-Circuit Res-Lok 4-cavity unit\u003c\/strong\u003e engineered for VHF communications in the 160-174 MHz band. Designed for space-constrained installations, this \u003cstrong\u003eVHF duplexer\u003c\/strong\u003e delivers exceptional isolation and low insertion loss in a rack-mount form factor. Perfect for two-way radio systems, emergency services, and commercial communications networks requiring reliable frequency separation with minimal footprint.\u003c\/p\u003e\u003c\/section\u003e\u003csection class=\"key-features\"\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eQ-Circuit Res-Lok Technology\u003c\/strong\u003e — Advanced resonator design for superior frequency stability and performance\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e4-Cavity Configuration\u003c\/strong\u003e — Optimized filtering for the 160-174 MHz VHF band with high selectivity\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompact Rack-Mount Design\u003c\/strong\u003e — Space-efficient form factor ideal for limited installation environments\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e120 W Average Input Power Rating\u003c\/strong\u003e — Supports high-power transmit applications with reliable operation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eN-Female Connectors\u003c\/strong\u003e — Standard 50 Ω impedance matching for seamless system integration\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePass-Reject Operation\u003c\/strong\u003e — Simultaneous transmit and receive with excellent isolation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLow Insertion Loss\u003c\/strong\u003e — Minimizes signal degradation for maximum system efficiency\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Isolation Performance\u003c\/strong\u003e — Prevents transmit-to-receive interference in duplex operations\u003c\/li\u003e\n\u003c\/ul\u003e\u003c\/section\u003e\u003csection class=\"technical-specs\"\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable border=\"1\" cellpadding=\"8\"\u003e\n\u003ctr\u003e\n\u003cth\u003eSpecification\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eManufacturer\u003c\/td\u003e\n\u003ctd\u003eSTRATEGIC SOURCING \/ Sinclair Technologies\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003eQ-2222E-2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eVHF Duplexer\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFrequency Band\u003c\/td\u003e\n\u003ctd\u003e160-174 MHz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCavity Configuration\u003c\/td\u003e\n\u003ctd\u003e4-Cavity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTechnology\u003c\/td\u003e\n\u003ctd\u003eQ-Circuit Res-Lok\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAverage Input Power\u003c\/td\u003e\n\u003ctd\u003e120 W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eConnectors\u003c\/td\u003e\n\u003ctd\u003eN-Female\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eImpedance\u003c\/td\u003e\n\u003ctd\u003e50 Ω\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperation Mode\u003c\/td\u003e\n\u003ctd\u003ePass-Reject (Duplex)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsertion Loss\u003c\/td\u003e\n\u003ctd\u003eLow\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIsolation\u003c\/td\u003e\n\u003ctd\u003eHigh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eForm Factor\u003c\/td\u003e\n\u003ctd\u003eRack-Mount Compact\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003c\/section\u003e\u003csection class=\"faq\"\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003ch3\u003eWhat is a VHF duplexer and how does it work?\u003c\/h3\u003e\n\u003cp\u003eA \u003cstrong\u003eVHF duplexer\u003c\/strong\u003e is a passive RF component that enables simultaneous transmit and receive operations on different frequencies within the same band. The Q-2222E-2 uses \u003cstrong\u003e4-cavity filtering\u003c\/strong\u003e to separate transmit and receive signals, preventing interference while maintaining low insertion loss and high isolation performance.\u003c\/p\u003e\n\u003ch3\u003eIs the Sinclair Q-2222E-2 suitable for compact radio installations?\u003c\/h3\u003e\n\u003cp\u003eYes. The \u003cstrong\u003ecompact 4-cavity duplexer\u003c\/strong\u003e is specifically designed for space-limited environments. Its rack-mount form factor and efficient Q-Circuit Res-Lok design make it ideal for installations where physical space is a constraint without compromising performance.\u003c\/p\u003e\n\u003ch3\u003eWhat power levels can this 160-174 MHz duplexer handle?\u003c\/h3\u003e\n\u003cp\u003eThe Q-2222E-2 supports up to \u003cstrong\u003e120 W average input power\u003c\/strong\u003e, making it suitable for both medium and high-power VHF communications systems. The N-Female connectors and 50 Ω impedance ensure reliable operation across the specified power range.\u003c\/p\u003e\n\u003ch3\u003eHow does the Res-Lok cavity design improve duplexer performance?\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003eRes-Lok technology\u003c\/strong\u003e provides enhanced frequency stability and superior filtering characteristics. Combined with the \u003cstrong\u003eQ-Circuit architecture\u003c\/strong\u003e, it delivers exceptional isolation between transmit and receive paths, minimizing signal degradation and interference in duplex operations.\u003c\/p\u003e\u003c\/section\u003e\n\u003c\/div\u003e","brand":"STRATEGIC SOURCING","offers":[{"title":"Default Title","offer_id":41731872489547,"sku":"Q-2222E-2","price":2881.83,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1824\/0789\/files\/Sinclair-Q-2222E-2-VHF-Duplexer-160-174-MHz.jpg?v=1788312573","url":"https:\/\/www.tecisoft.com\/products\/sinclair-q-2222e-2-vhf-duplexer-160-174-mhz","provider":"TeciSoft","version":"1.0","type":"link"}