{"product_id":"radiomaster-dbr4-dual-band-xross-gemini-expresslrs-receiver","title":"RadioMaster DBR4 Dual-Band Xross Gemini ExpressLRS Receiver","description":"\u003cstyle\u003e#html-body [data-pb-style=S1DQNK5]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}#html-body [data-pb-style=RQC348S]{display:none}#html-body [data-pb-style=TIFR7J7]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}#html-body [data-pb-style=YBG2G1E]{display:none}#html-body [data-pb-style=TTWGKGU]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}#html-body [data-pb-style=UQSEH58]{display:none}#html-body [data-pb-style=M84BVR6],#html-body [data-pb-style=P5KQESL]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}#html-body [data-pb-style=QDIC83O]{border-style:none}#html-body [data-pb-style=JQ6W8RB],#html-body [data-pb-style=LJGR3KB]{max-width:100%;height:auto}#html-body [data-pb-style=BFM68FP],#html-body [data-pb-style=I3JC63N],#html-body [data-pb-style=W8RYA4D]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}#html-body [data-pb-style=BYOCDC8]{display:none}#html-body [data-pb-style=S2GP33L]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}#html-body [data-pb-style=JQ2NXUT]{display:none}#html-body [data-pb-style=LGJWO61]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}#html-body [data-pb-style=NRIU3VW]{display:none}#html-body [data-pb-style=IW4AIB5],#html-body [data-pb-style=XWPUREC]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}#html-body [data-pb-style=WHGVCU8]{display:none}#html-body [data-pb-style=H6Y67QV]{justify-content:flex-start;display:flex;flex-direction:column;background-position:left top;background-size:cover;background-repeat:no-repeat;background-attachment:scroll}#html-body [data-pb-style=N75TMB5],#html-body [data-pb-style=YH87XLG]{display:none}@media only screen and (max-width: 768px) { #html-body [data-pb-style=QDIC83O]{border-style:none} }\u003c\/style\u003e\n\u003cdiv data-element=\"main\" data-appearance=\"contained\" data-content-type=\"row\"\u003e\n\u003cdiv data-pb-style=\"S1DQNK5\" data-element=\"inner\" data-video-fallback-src=\"\" data-video-lazy-load=\"true\" data-video-play-only-visible=\"true\" data-video-loop=\"true\" data-background-type=\"image\" data-background-images=\"{}\" data-parallax-speed=\"0.5\" data-enable-parallax=\"0\"\u003e\n\u003cdiv data-element=\"main\" data-appearance=\"default\" data-content-type=\"text\"\u003e\n\u003cp\u003eIntroducing the \u003cstrong\u003eDBR4 Receiver\u003c\/strong\u003e—the ideal match for the RadioMaster Nomad. This advanced dual-band, dual-channel Gemini receiver ensures seamless compatibility with the Nomad module. With its ability to simultaneously receive 2.4GHz and 900MHz signals, the DBR4 offers exceptional interference rejection and reliable signal integrity. Trust the DBR4 for robust performance and explore new horizons with confidence.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-pb-style=\"YBG2G1E\" data-element=\"main\" data-appearance=\"contained\" data-content-type=\"row\"\u003e\n\u003cdiv data-pb-style=\"TTWGKGU\" data-element=\"inner\" data-video-fallback-src=\"\" data-video-lazy-load=\"true\" data-video-play-only-visible=\"true\" data-video-loop=\"true\" data-background-type=\"image\" data-background-images=\"{}\" data-parallax-speed=\"0.5\" data-enable-parallax=\"0\"\u003e\n\u003cdiv data-pb-style=\"UQSEH58\" data-element=\"main\" data-appearance=\"default\" data-content-type=\"text\"\u003e\n\u003cp\u003e\u003cstrong\u003eVIDEO: RadioMaster Nomad ExpressLRS Module – Next-Level Dual-Band Performance!\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv data-element=\"main\" data-appearance=\"default\" data-content-type=\"video\"\u003e\n\u003cdiv data-element=\"inner\" class=\"pagebuilder-video-inner\"\u003e\n\u003cdiv data-element=\"wrapper\" class=\"pagebuilder-video-wrapper\"\u003e\n\u003cdiv class=\"pagebuilder-video-container\"\u003e\u003ciframe data-element=\"video\" src=\"https:\/\/www.youtube.com\/embed\/6JBUo8BUgac\"\u003e\u003c\/iframe\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-element=\"main\" data-appearance=\"contained\" data-content-type=\"row\"\u003e\n\u003cdiv data-pb-style=\"P5KQESL\" data-element=\"inner\" data-video-fallback-src=\"\" data-video-lazy-load=\"true\" data-video-play-only-visible=\"true\" data-video-loop=\"true\" data-background-type=\"image\" data-background-images=\"{}\" data-parallax-speed=\"0.5\" data-enable-parallax=\"0\"\u003e\n\u003ch2 data-element=\"main\" data-appearance=\"default\" data-content-type=\"heading\"\u003eFeatures\u003c\/h2\u003e\n\u003cdiv data-element=\"main\" data-appearance=\"default\" data-content-type=\"text\"\u003e\n\u003cul\u003e\n\u003cli\u003eSupports ExpressLRS Gemini 868\/900MHz\u003c\/li\u003e\n\u003cli\u003eSupports ExpressLRS Gemini 2.4GHz\u003c\/li\u003e\n\u003cli\u003e2x 100mw Telemetry RF Power\u003c\/li\u003e\n\u003cli\u003eGemini Xrossband Technology\u003c\/li\u003e\n\u003cli\u003eAdvanced Cooling System\u003c\/li\u003e\n\u003cli\u003e20x20 Mounting Holes\u003c\/li\u003e\n\u003cli\u003e4 Discrete Antennas\u003c\/li\u003e\n\u003cli\u003eCompatibility\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-element=\"main\" data-appearance=\"contained\" data-content-type=\"row\"\u003e\n\u003cdiv data-pb-style=\"M84BVR6\" data-element=\"inner\" data-video-fallback-src=\"\" data-video-lazy-load=\"true\" data-video-play-only-visible=\"true\" data-video-loop=\"true\" data-background-type=\"image\" data-background-images=\"{}\" data-parallax-speed=\"0.5\" data-enable-parallax=\"0\"\u003e\n\u003cfigure data-pb-style=\"QDIC83O\" data-element=\"main\" data-appearance=\"full-width\" data-content-type=\"image\"\u003e\u003cimg data-pb-style=\"LJGR3KB\" data-element=\"desktop_image\" title=\"\" class=\"pagebuilder-mobile-hidden\"\u003e\u003cimg data-pb-style=\"JQ6W8RB\" data-element=\"mobile_image\" title=\"\" class=\"pagebuilder-mobile-only\"\u003e\u003c\/figure\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-element=\"main\" data-appearance=\"contained\" data-content-type=\"row\"\u003e\n\u003cdiv data-pb-style=\"I3JC63N\" data-element=\"inner\" data-video-fallback-src=\"\" data-video-lazy-load=\"true\" data-video-play-only-visible=\"true\" data-video-loop=\"true\" data-background-type=\"image\" data-background-images=\"{}\" data-parallax-speed=\"0.5\" data-enable-parallax=\"0\"\u003e\n\u003cdiv data-element=\"main\" data-appearance=\"default\" data-content-type=\"text\"\u003e\n\u003cp\u003e\u003cstrong\u003eINTRODUCTION OF K MODES\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv data-element=\"main\" data-appearance=\"default\" data-content-type=\"text\"\u003e\n\u003cp\u003e\u003cstrong\u003eK1000 Full SubGHz (Coming in ExpressLRS V3.5)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eYes, you read that right—1000Hz in the 868\/900MHz domain! While this mode is designed for maximum data throughput when used with MAVLink, don't let the 1000Hz fool you; during development, it was tested for long-range performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDK500 (Coming in ExpressLRS V3.5)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned specifically from the ground up for speed enthusiasts and RC reliability. K modes are next-generation FSK modulation with built-in packet repair (Forward Error Correction). Similar to FLRC D500, DK500 sends repeat packets to minimize packet loss in challenging race environments. Paired with a Gemini-enabled Tx and Rx, nothing compares to its RC reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-element=\"main\" data-appearance=\"contained\" data-content-type=\"row\"\u003e\n\u003cdiv data-pb-style=\"W8RYA4D\" data-element=\"inner\" data-video-fallback-src=\"\" data-video-lazy-load=\"true\" data-video-play-only-visible=\"true\" data-video-loop=\"true\" data-background-type=\"image\" data-background-images=\"{}\" data-parallax-speed=\"0.5\" data-enable-parallax=\"0\"\u003e\n\u003cdiv data-element=\"main\" data-appearance=\"default\" data-content-type=\"text\"\u003e\n\u003cp\u003e\u003cstrong\u003eNEW PACKET RATES\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv data-element=\"main\" data-appearance=\"default\" data-content-type=\"text\"\u003e\n\u003cp\u003e\u003cstrong\u003eSub-GHz 200Hz Full (-111dBm)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOptimized for MAVLink: Double the packet rate of current 900MHz SX1276 hardware, tailored specifically for MAVLink users to provide a more robust link and reduced interference.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDual Band X100Hz Full (-112dBm)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEnhanced Gemini Mode: Enjoy dual-frequency transmission with a 100Hz packet rate and full 16-channel resolution, ensuring strong and stable connectivity even in challenging environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eDual Band X150Hz (-112dBm)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eGemini Mode: Experience simultaneous sub-GHz and 2.4GHz transmissions, offering robust performance and reduced interference with a packet rate of 150Hz.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eSub-GHz 250Hz (-111dBm)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSpeed Boost: Achieve faster packet rates with enhanced sub-GHz performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-element=\"main\" data-appearance=\"contained\" data-content-type=\"row\"\u003e\n\u003cdiv data-pb-style=\"BFM68FP\" data-element=\"inner\" data-video-fallback-src=\"\" data-video-lazy-load=\"true\" data-video-play-only-visible=\"true\" data-video-loop=\"true\" data-background-type=\"image\" data-background-images=\"{}\" data-parallax-speed=\"0.5\" data-enable-parallax=\"0\"\u003e\n\u003ch2 data-element=\"main\" data-appearance=\"default\" data-content-type=\"heading\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv data-element=\"main\" data-appearance=\"default\" data-content-type=\"text\"\u003e\n\u003cul\u003e\n\u003cli\u003eMaximum Receive Refresh Rate: 500Hz (1000Hz coming soon in ExpressLRS V3.4)\u003c\/li\u003e\n\u003cli\u003eFrequency Range: 2.404 - 2.479 GHz \/ 903.5 - 926.9 MHz\u003c\/li\u003e\n\u003cli\u003eWeight: 2.70g (without antennas) \/ 5.30g (with antennas)\u003c\/li\u003e\n\u003cli\u003eItem: DBR4 Gemini Xrossband ExpressLRS Receiver\u003c\/li\u003e\n\u003cli\u003eFirmware Version: ExpressLRS v3.3.2 pre-installed\u003c\/li\u003e\n\u003cli\u003eAntenna: 2 × 2.4GHz Wires \u0026amp; 2 × 900MHz Wires\u003c\/li\u003e\n\u003cli\u003eMinimum Receiver Refresh Rate: 50Hz\u003c\/li\u003e\n\u003cli\u003eTelemetry RF Power: Max 100mW\u003c\/li\u003e\n\u003cli\u003eWorking Voltage: DC 4.5 - 8.4V\u003c\/li\u003e\n\u003cli\u003eDimensions: 27.20 × 27.20 mm\u003c\/li\u003e\n\u003cli\u003eRF Chip: Semtech LR1121 × 2\u003c\/li\u003e\n\u003cli\u003eType: ISM_2.4, FCC_915\u003c\/li\u003e\n\u003cli\u003eBus Interface: CRSF\u003c\/li\u003e\n\u003cli\u003eMCU: ESP32\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-pb-style=\"BYOCDC8\" data-element=\"main\" data-appearance=\"contained\" data-content-type=\"row\"\u003e\n\u003cdiv data-pb-style=\"S2GP33L\" data-element=\"inner\" data-video-fallback-src=\"\" data-video-lazy-load=\"true\" data-video-play-only-visible=\"true\" data-video-loop=\"true\" data-background-type=\"image\" data-background-images=\"{}\" data-parallax-speed=\"0.5\" data-enable-parallax=\"0\"\u003e\n\u003cdiv data-element=\"main\" data-appearance=\"default\" data-content-type=\"text\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-pb-style=\"NRIU3VW\" data-element=\"main\" data-appearance=\"contained\" data-content-type=\"row\"\u003e\n\u003cdiv data-pb-style=\"IW4AIB5\" data-element=\"inner\" data-video-fallback-src=\"\" data-video-lazy-load=\"true\" data-video-play-only-visible=\"true\" data-video-loop=\"true\" data-background-type=\"image\" data-background-images=\"{}\" data-parallax-speed=\"0.5\" data-enable-parallax=\"0\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-element=\"main\" data-appearance=\"contained\" data-content-type=\"row\"\u003e\n\u003cdiv data-pb-style=\"XWPUREC\" data-element=\"inner\" data-video-fallback-src=\"\" data-video-lazy-load=\"true\" data-video-play-only-visible=\"true\" data-video-loop=\"true\" data-background-type=\"image\" data-background-images=\"{}\" data-parallax-speed=\"0.5\" data-enable-parallax=\"0\"\u003e\n\u003ch2 data-element=\"main\" data-appearance=\"default\" data-content-type=\"heading\"\u003eIncludes\u003c\/h2\u003e\n\u003cdiv data-element=\"main\" data-appearance=\"default\" data-content-type=\"text\"\u003e\n\u003cul\u003e\n\u003cli\u003e1x RadioMaster DBR4 Dual-Band Xross Gemini ExpressLRS Receiver\u003c\/li\u003e\n\u003cli\u003e4x 3mm Black Vibration Dampeners\u003c\/li\u003e\n\u003cli\u003e4x 4mm Red Vibration Dampeners\u003c\/li\u003e\n\u003cli\u003e1x Manual Card\u003c\/li\u003e\n\u003cli\u003e1x CRSF Wire\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv data-pb-style=\"WHGVCU8\" data-element=\"main\" data-appearance=\"contained\" data-content-type=\"row\"\u003e\n\u003cdiv data-pb-style=\"H6Y67QV\" data-element=\"inner\" data-video-fallback-src=\"\" data-video-lazy-load=\"true\" data-video-play-only-visible=\"true\" data-video-loop=\"true\" data-background-type=\"image\" data-background-images=\"{}\" data-parallax-speed=\"0.5\" data-enable-parallax=\"0\"\u003e\n\u003cdiv data-pb-style=\"YH87XLG\" data-element=\"main\" data-appearance=\"default\" data-content-type=\"video\"\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"RadioMaster","offers":[{"title":"Default Title","offer_id":46702237843686,"sku":"22548","price":38.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0698\/9525\/8342\/files\/radiomaster-dbr4-dual-band-xross-gemini-expresslrs-receiver-_image-6.jpg?v=1759318184","url":"https:\/\/shop.lumenier.com\/products\/radiomaster-dbr4-dual-band-xross-gemini-expresslrs-receiver","provider":"Lumenier","version":"1.0","type":"link"}