{"product_id":"motorola-hkfe4001a-slr1000-internal-duplexer","title":"Motorola HKFE4001A SLR1000 Internal Duplexer (430-480 MHz)","description":"\u003ch2 data-path-to-node=\"11\"\u003eInternal Tuning Duplexer for Compact Repeaters\u003c\/h2\u003e\n\u003ch3 data-path-to-node=\"12\"\u003eSingle-Antenna Operations for UHF Infrastructure\u003c\/h3\u003e\n\u003cp data-path-to-node=\"13\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"13\"\u003eStreamline your wireless infrastructure footprint by enabling your repeater to transmit and receive simultaneously through a single antenna feedline.\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003eConsolidate your hardware footprint at your station site by employing a specialized internal radio frequency filtering component. This commercial-grade duplexer manages high-isolation signal routing across the core UHF spectrum. By allowing a single transceiver setup to process incoming and outgoing voice traffic at the exact same time over one coaxial transmission line, this module removes the logistical need to install, space out, and maintain two separate external antennas. The Motorola HKFE4001A is the updated version of the Motorola HKFE4001.\u003c\/p\u003e\n\u003cp\u003eTailored to preserve the compact physical size of your low-power base station, the filter mechanism mounts cleanly right inside the primary equipment shell. The milled metal cavities deliver clean channel separation, preventing transmitter overflow from overwhelming the receiver circuit. This heavy-duty shielding ensures maximum sensitivity and coverage range even during prolonged communication windows in unventilated equipment closets or outdoor utility enclosures.\u003c\/p\u003e\n\u003cp\u003eIntegrating this component maintains uncompromised performance across your localized coverage area without degrading signal strength. Because the module fits entirely within the pre-existing housing layout, the upgrade preserves all original weatherproofing characteristics when sealed properly with factory gaskets. This component provides an exceptionally practical option for space-restricted environments like mobile emergency command trailers, industrial roof structures, and remote solar stations.\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"17\"\u003eKey Features \u0026amp; Benefits\u003c\/h3\u003e\n\u003cul data-path-to-node=\"18\"\u003e\n\u003cli\u003e\n\u003cb data-index-in-node=\"0\" data-path-to-node=\"18,0,0\"\u003eSingle Antenna Optimization:\u003c\/b\u003e Integrates transmit and receive paths onto one coaxial cable, lowering structural antenna lease overhead.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb data-index-in-node=\"0\" data-path-to-node=\"18,1,0\"\u003eHigh RF Isolation:\u003c\/b\u003e Delivers exceptional frequency separation across the 430–480 MHz band to prevent cross-channel interference.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb data-index-in-node=\"0\" data-path-to-node=\"18,2,0\"\u003eDirect Internal Mounting:\u003c\/b\u003e Installs cleanly inside the repeater chassis enclosure to maintain a space-saving, low-profile architecture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb data-index-in-node=\"0\" data-path-to-node=\"18,3,0\"\u003eLow Insertion Loss:\u003c\/b\u003e High-efficiency cavity engineering prevents signal degradation, ensuring maximum transmitter power reaches the airwaves.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb data-index-in-node=\"0\" data-path-to-node=\"18,4,0\"\u003eIndustrial-Grade Reliability:\u003c\/b\u003e Thermally stable metal housing withstands fluctuating temperatures inside sealed outdoor infrastructure housings.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"22\"\u003eSpecifications\u003c\/h3\u003e\n\u003ctable data-path-to-node=\"23\"\u003e\n\u003cthead\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eAttribute\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eDetails\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,1,0,0\"\u003eBrand\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,1,1,0\"\u003eMotorola Solutions\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,2,0,0\"\u003eModel\/SKU\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,2,1,0\"\u003e\u003cb data-index-in-node=\"0\" data-path-to-node=\"23,2,1,0\"\u003eMotorola HKFE4001A\u003c\/b\u003e (HKFE4001)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,3,0,0\"\u003eProduct Type\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,3,1,0\"\u003eInternal Cavity Duplexer\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,4,0,0\"\u003eFrequency Band\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,4,1,0\"\u003eUHF (430–480 MHz)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,5,0,0\"\u003eMounting Location\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,5,1,0\"\u003eInternal Chassis\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,6,0,0\"\u003eDevice Compatibility\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd\u003e\u003cspan data-path-to-node=\"23,6,1,0\"\u003eLow-Power Infrastructure Base Stations\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3 data-path-to-node=\"29\"\u003eRecommended Accessories\u003c\/h3\u003e\n\u003cul data-path-to-node=\"30\"\u003e\n\u003cli\u003eMotorola SLR1000 MOTOTRBO Compact Repeater - \u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003ca href=\"https:\/\/www.atlanticradiocorp.com\/products\/motorola-slr1000-mototrbo-repeater\" target=\"_blank\" title=\"SLR1000\" rel=\"noopener\"\u003eMotorola SLR1000\u003c\/a\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e — The primary compact infrastructure repeater that houses this internal duplexer for single-antenna operations.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"31\"\u003eMore Resources\u003c\/h3\u003e\n\u003cul data-path-to-node=\"32\"\u003e\n\u003cli\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003ca class=\"ng-star-inserted\" href=\"https:\/\/www.atlanticradiocorp.com\/blogs\/news\/key-features-of-motorola-digital-repeaters-for-business-use\" rel=\"noopener\" target=\"_blank\"\u003eKey Features of Motorola Digital Repeaters for Business Use\u003c\/a\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003ca class=\"ng-star-inserted\" href=\"https:\/\/www.atlanticradiocorp.com\/blogs\/hytera-2-way-radios\/4-benefits-of-using-two-way-radio-repeaters\" rel=\"noopener\" target=\"_blank\"\u003e4 Benefits of Using Two-Way Radio Repeaters\u003c\/a\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\u003c!----\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-path-to-node=\"33\"\u003eFrequently Asked Questions\u003c\/h3\u003e\n\u003ch4 data-path-to-node=\"34\"\u003eWhat specific frequency range does this duplexer support?\u003c\/h4\u003e\n\u003cp\u003eThe HKFE4001A is designed to operate within the UHF band, covering frequencies from 430 MHz to 480 MHz, and must be precisely tuned to your specific TX and RX frequencies.\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"36\"\u003eDoes this duplexer come pre-tuned from the factory?\u003c\/h4\u003e\n\u003cp\u003eNo. Cavity duplexers must be manually benched-tuned using a network analyzer to match your organization's exact FCC-licensed frequencies before deployment to avoid equipment damage.\u003c\/p\u003e\n\u003ch4 data-path-to-node=\"38\"\u003eCan I install this module myself inside the SLR1000?\u003c\/h4\u003e\n\u003cp\u003eYes, it is designed for direct internal integration. However, because it requires specialized RF jumper routing and precise alignment tuning, installation by a certified radio communications technician is strongly recommended.\u003c\/p\u003e\n\u003cp data-path-to-node=\"39\"\u003e \u003c\/p\u003e\n\u003ch3 data-path-to-node=\"40\"\u003eWarranty\u003c\/h3\u003e\n\u003cp data-path-to-node=\"41\"\u003e1-year manufacturer's warranty.\u003c\/p\u003e","brand":"Motorola","offers":[{"title":"Default Title","offer_id":47938726985902,"sku":"HKFE4001A","price":986.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0062\/0845\/4744\/files\/HKFE4001Aa.png?v=1780505689","url":"https:\/\/www.atlanticradiocorp.com\/products\/motorola-hkfe4001a-slr1000-internal-duplexer","provider":"Atlantic Radio Communications Corp. ","version":"1.0","type":"link"}