{"product_id":"flysky-fgr4d-2-4ghz-4ch-afhds3-dual-antenna-rc-receiver","title":"Flysky FGr4D 2.4GHz 4CH AFHDS 3 Dual Antenna RC Receiver","description":"\u003c!-- SOP:v1.7 | 2026-09-05 | executor:Sidekick --\u003e\n\u003cp\u003eThe \u003cstrong\u003eFlysky FGr4D\u003c\/strong\u003e is a 4-channel bidirectional receiver built on the \u003cstrong\u003eAFHDS 3\u003c\/strong\u003e protocol. It features \u003cstrong\u003edual built-in antennas\u003c\/strong\u003e for improved signal reliability, an \u003cstrong\u003eIPX6 nano waterproof\u003c\/strong\u003e coating, and four flexible Newport signal interfaces supporting i-BUS2, S.BUS, i-BUS, and PPM — customizable per port. Designed for RC cars and boats, the FGr4D is an enhanced receiver in the AFHDS 3 lineup, adding BVD battery voltage detection and dual-antenna diversity over the FGr4S.\u003c\/p\u003e\n\u003cdiv id=\"toc\" style=\"background: #f5f8fc; border: 1px solid #dde4ed; border-radius: 8px; padding: 16px 20px; margin: 20px 0;\"\u003e\n\u003cp style=\"font-weight: bold; font-size: 15px; margin: 0 0 10px; color: #1a2b3c;\"\u003e📋 Contents\u003c\/p\u003e\n\u003col style=\"margin: 0; padding-left: 20px; line-height: 1.9; color: #1a2b3c;\"\u003e\n\u003cli\u003e\u003ca href=\"#key-features\" style=\"color: #1a2b3c; text-decoration: none;\"\u003eKey Features\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#review-video\" style=\"color: #1a2b3c; text-decoration: none;\"\u003eReview Video\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#gallery\" style=\"color: #1a2b3c; text-decoration: none;\"\u003eGallery\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#specifications\" style=\"color: #1a2b3c; text-decoration: none;\"\u003eSpecifications\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#compatibility\" style=\"color: #1a2b3c; text-decoration: none;\"\u003eTransmitter Compatibility\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#related\" style=\"color: #1a2b3c; text-decoration: none;\"\u003eRelated Products\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"#related-reading\" style=\"color: #1a2b3c; text-decoration: none;\"\u003eRelated Reading\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/div\u003e\n\u003ch2 id=\"key-features\" style=\"scroll-margin-top: 100px;\"\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e✅ \u003cstrong\u003eDual Built-in Antennas\u003c\/strong\u003e — antenna diversity for improved range and signal stability vs single-antenna receivers\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eAFHDS 3 Protocol\u003c\/strong\u003e — 3rd-gen Flysky 2.4GHz system with excellent anti-interference and bidirectional telemetry\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003e4 Newport Flexible Interfaces\u003c\/strong\u003e — each port independently configurable as i-BUS2 \/ S.BUS \/ i-BUS \/ PPM output\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eIPX6 Nano Waterproof\u003c\/strong\u003e — nano-coating water resistance rated IPX6, suitable for wet-weather RC car and boat use\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eBVD Battery Voltage Detection\u003c\/strong\u003e — real-time battery voltage reporting back to the transmitter\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003ePWM Converter Mode\u003c\/strong\u003e — can act as a PWM signal converter for broader compatibility\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eOnline Firmware Update\u003c\/strong\u003e — update via transmitter without PC connection\u003c\/li\u003e\n\u003cli\u003e✅ \u003cstrong\u003eCompact \u0026amp; Lightweight\u003c\/strong\u003e — 30.3 × 25.8 × 20mm, 7.2g\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: right; margin: 8px 0 24px;\"\u003e\u003ca href=\"#toc\" style=\"font-size: 13px; color: #ffbf00; text-decoration: none;\"\u003e↑ Back to Contents\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2 id=\"review-video\" style=\"scroll-margin-top: 100px;\"\u003eReview Video\u003c\/h2\u003e\n\u003cp style=\"text-align: center; margin: 15px 0;\"\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/ngk5FGQDq2U\" title=\"Flysky FGr4D AFHDS 3 Dual Antenna Receiver Review | SoarSky\" style=\"max-width: 500px; width: 100%; aspect-ratio: 16\/9; border-radius: 8px; border: 0;\" loading=\"lazy\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center; color: #666; font-size: 13px; margin-top: -10px;\"\u003e\u003cem\u003eReal-world review: Flysky FGr4D dual-antenna AFHDS 3 receiver\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: right; margin: 8px 0 24px;\"\u003e\u003ca href=\"#toc\" style=\"font-size: 13px; color: #ffbf00; text-decoration: none;\"\u003e↑ Back to Contents\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2 id=\"gallery\" style=\"scroll-margin-top: 100px;\"\u003eGallery\u003c\/h2\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0742\/4013\/1357\/files\/FGr4D_Weight.jpg?v=1788541497\" alt=\"Flysky FGr4D Receiver Weight and Size Reference | SoarSky\" style=\"max-width: 900px; width: 100%; border-radius: 8px;\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center; color: #666666; font-size: 13px; margin-top: -6px;\"\u003e\u003cem\u003eFGr4D — weight 7.2g, dimensions 30.3 × 25.8 × 20mm\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0742\/4013\/1357\/files\/FGr4D_Control_Distance.jpg?v=1788541497\" alt=\"Flysky FGr4D AFHDS 3 Receiver Control Distance Diagram | SoarSky\" style=\"max-width: 900px; width: 100%; border-radius: 8px;\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center; color: #666666; font-size: 13px; margin-top: -6px;\"\u003e\u003cem\u003eFGr4D — control distance performance\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0742\/4013\/1357\/files\/FGr4D_Waterproofing.jpg?v=1788541497\" alt=\"Flysky FGr4D IPX6 Nano Waterproof Coating Detail | SoarSky\" style=\"max-width: 900px; width: 100%; border-radius: 8px;\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center; color: #666666; font-size: 13px; margin-top: -6px;\"\u003e\u003cem\u003eFGr4D — IPX6 nano waterproof coating\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0742\/4013\/1357\/files\/FGr4D_Output_Types.jpg?v=1788541498\" alt=\"Flysky FGr4D Newport Signal Output Types i-BUS2 S.BUS PPM | SoarSky\" style=\"max-width: 900px; width: 100%; border-radius: 8px;\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center; color: #666666; font-size: 13px; margin-top: -6px;\"\u003e\u003cem\u003eFGr4D — Newport port output type options: i-BUS2 \/ S.BUS \/ i-BUS \/ PPM\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0742\/4013\/1357\/files\/FGr4D_Installation_Method.jpg?v=1788541497\" alt=\"Flysky FGr4D Receiver Installation Method Diagram | SoarSky\" style=\"max-width: 900px; width: 100%; border-radius: 8px;\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center; color: #666666; font-size: 13px; margin-top: -6px;\"\u003e\u003cem\u003eFGr4D — installation and mounting reference\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0742\/4013\/1357\/files\/FGr4D_Gold-Plated_Pins_Display.jpg?v=1788541497\" alt=\"Flysky FGr4D Gold-Plated Pin Connectors Detail | SoarSky\" style=\"max-width: 900px; width: 100%; border-radius: 8px;\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center; color: #666666; font-size: 13px; margin-top: -6px;\"\u003e\u003cem\u003eFGr4D — gold-plated pin connectors for reliable contact\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0742\/4013\/1357\/files\/FGr4D_Specifications.jpg?v=1788541497\" alt=\"Flysky FGr4D Full Specifications Overview | SoarSky\" style=\"max-width: 900px; width: 100%; border-radius: 8px;\"\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: center; color: #666666; font-size: 13px; margin-top: -6px;\"\u003e\u003cem\u003eFGr4D — full specifications overview\u003c\/em\u003e\u003c\/p\u003e\n\u003cp style=\"text-align: right; margin: 8px 0 24px;\"\u003e\u003ca href=\"#toc\" style=\"font-size: 13px; color: #ffbf00; text-decoration: none;\"\u003e↑ Back to Contents\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2 id=\"specifications\" style=\"scroll-margin-top: 100px;\"\u003eSpecifications\u003c\/h2\u003e\n\u003cdiv style=\"width: 100%; border-radius: 8px; overflow: hidden; border: 1px solid #dde4ed; font-size: 14px;\"\u003e\n\u003cdiv style=\"display: flex; background: #1A2B3C; color: #fff; font-weight: bold; padding: 10px 16px;\"\u003e\n\u003cspan style=\"flex: 1;\"\u003eParameter\u003c\/span\u003e\u003cspan style=\"flex: 2;\"\u003eValue\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; background: #f5f8fc; padding: 10px 16px;\"\u003e\n\u003cspan style=\"flex: 1; color: #1a2b3c;\"\u003eModel\u003c\/span\u003e\u003cspan style=\"flex: 2;\"\u003eFGr4D\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; padding: 10px 16px;\"\u003e\n\u003cspan style=\"flex: 1; color: #1a2b3c;\"\u003eChannels\u003c\/span\u003e\u003cspan style=\"flex: 2;\"\u003e4 PWM\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; background: #f5f8fc; padding: 10px 16px;\"\u003e\n\u003cspan style=\"flex: 1; color: #1a2b3c;\"\u003eRF Frequency\u003c\/span\u003e\u003cspan style=\"flex: 2;\"\u003e2.4GHz\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; padding: 10px 16px;\"\u003e\n\u003cspan style=\"flex: 1; color: #1a2b3c;\"\u003eProtocol\u003c\/span\u003e\u003cspan style=\"flex: 2;\"\u003eAFHDS 3\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; background: #f5f8fc; padding: 10px 16px;\"\u003e\n\u003cspan style=\"flex: 1; color: #1a2b3c;\"\u003eAntenna\u003c\/span\u003e\u003cspan style=\"flex: 2;\"\u003eDual built-in antennas\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; padding: 10px 16px;\"\u003e\n\u003cspan style=\"flex: 1; color: #1a2b3c;\"\u003eInput Power\u003c\/span\u003e\u003cspan style=\"flex: 2;\"\u003e3.5–9V DC\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; background: #f5f8fc; padding: 10px 16px;\"\u003e\n\u003cspan style=\"flex: 1; color: #1a2b3c;\"\u003eData Output\u003c\/span\u003e\u003cspan style=\"flex: 2;\"\u003ePWM \/ PPM \/ i-BUS \/ i-BUS2 \/ S.BUS\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; padding: 10px 16px;\"\u003e\n\u003cspan style=\"flex: 1; color: #1a2b3c;\"\u003eWaterproofing\u003c\/span\u003e\u003cspan style=\"flex: 2;\"\u003eIPX6 nano waterproof\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; background: #f5f8fc; padding: 10px 16px;\"\u003e\n\u003cspan style=\"flex: 1; color: #1a2b3c;\"\u003eBattery Voltage Detection\u003c\/span\u003e\u003cspan style=\"flex: 2;\"\u003eYes (BVD)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; padding: 10px 16px;\"\u003e\n\u003cspan style=\"flex: 1; color: #1a2b3c;\"\u003eOnline Update\u003c\/span\u003e\u003cspan style=\"flex: 2;\"\u003eYes (via transmitter)\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; background: #f5f8fc; padding: 10px 16px;\"\u003e\n\u003cspan style=\"flex: 1; color: #1a2b3c;\"\u003eDimensions\u003c\/span\u003e\u003cspan style=\"flex: 2;\"\u003e30.3 × 25.8 × 20mm\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; padding: 10px 16px;\"\u003e\n\u003cspan style=\"flex: 1; color: #1a2b3c;\"\u003eWeight\u003c\/span\u003e\u003cspan style=\"flex: 2;\"\u003e7.2g\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; background: #f5f8fc; padding: 10px 16px;\"\u003e\n\u003cspan style=\"flex: 1; color: #1a2b3c;\"\u003eTemperature Range\u003c\/span\u003e\u003cspan style=\"flex: 2;\"\u003e-10°C to +60°C\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; padding: 10px 16px;\"\u003e\n\u003cspan style=\"flex: 1; color: #1a2b3c;\"\u003eHumidity Range\u003c\/span\u003e\u003cspan style=\"flex: 2;\"\u003e20% – 95%\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"display: flex; background: #f5f8fc; padding: 10px 16px;\"\u003e\n\u003cspan style=\"flex: 1; color: #1a2b3c;\"\u003eCertification\u003c\/span\u003e\u003cspan style=\"flex: 2;\"\u003eCE \/ FCC ID: 2A2UNFGR4D\u003c\/span\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cp style=\"text-align: right; margin: 8px 0 24px;\"\u003e\u003ca href=\"#toc\" style=\"font-size: 13px; color: #ffbf00; text-decoration: none;\"\u003e↑ Back to Contents\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2 id=\"compatibility\" style=\"scroll-margin-top: 100px;\"\u003eTransmitter Compatibility\u003c\/h2\u003e\n\u003cp\u003eCompatible with all \u003cstrong\u003eAFHDS 3\u003c\/strong\u003e transmitters and RF modules, including:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFlysky PL18 \/ PL18 EV \/ Paladin EV\u003c\/li\u003e\n\u003cli\u003eFlysky NB4 \/ NB4 Lite \/ NB4 Pro+ \/ NB4+\u003c\/li\u003e\n\u003cli\u003eFlysky PA01\u003c\/li\u003e\n\u003cli\u003eAny AFHDS 3-capable RF module\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"text-align: right; margin: 8px 0 24px;\"\u003e\u003ca href=\"#toc\" style=\"font-size: 13px; color: #ffbf00; text-decoration: none;\"\u003e↑ Back to Contents\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2 id=\"related\" style=\"scroll-margin-top: 100px;\"\u003eRelated Products\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/soarskyrc.com\/collections\/flysky-receiver\" rel=\"noopener\" target=\"_blank\"\u003eBrowse all Flysky Receivers at SoarSky →\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/soarskyrc.com\/collections\/fly-sky\" rel=\"noopener\" target=\"_blank\"\u003eFlysky RC Products \u0026amp; Accessories →\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 id=\"related-reading\" style=\"scroll-margin-top: 100px;\"\u003eRelated Reading\u003c\/h2\u003e\n\u003cp\u003eNot sure which AFHDS 3 receiver fits your build? These SoarSky guides compare models and cover common use cases:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e📖 \u003ca href=\"https:\/\/soarskyrc.com\/blogs\/technology-sharing\/flysky-afhds3-receiver-buying-guide-2026\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eFlysky AFHDS 3 Air Receiver Buying Guide 2026: 7 Popular Models Compared\u003c\/strong\u003e — detailed side-by-side comparison of FGr4D, FGr4S, FGr8, and more\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e📖 \u003ca href=\"https:\/\/soarskyrc.com\/blogs\/technology-sharing\/the-difference-between-flysky-afhds3-receivers\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eThe Difference Between Flysky AFHDS 3 Receivers\u003c\/strong\u003e — protocol versions, antenna types, and interface differences explained\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e📖 \u003ca href=\"https:\/\/soarskyrc.com\/blogs\/technology-sharing\/the-difference-between-flysky-fgr4b-and-fgr4d-receiver\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eFlysky FGr4B vs FGr4D — What’s the Difference?\u003c\/strong\u003e — dual-antenna model comparison for car and boat builds\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e📖 \u003ca href=\"https:\/\/soarskyrc.com\/blogs\/technology-sharing\/flysky-fbr8-waterproof-receiver-review-ppx7-8ch-afhds-3-best-for-rc-boats-crawlers\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eFlysky FBr8 Waterproof Receiver Review: PPX7, 8CH AFHDS 3\u003c\/strong\u003e — in-depth review of Flysky’s waterproof 8-channel receiver for boats and crawlers\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e📖 \u003ca href=\"https:\/\/soarskyrc.com\/blogs\/technology-sharing\/how-to-choose-flysky-afhds-3-fixed-wing-airplane-boat-receiver\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eHow to Choose a Flysky AFHDS 3 Receiver for Fixed-Wing, Boat \u0026amp; Ground Vehicles\u003c\/strong\u003e — application-specific selection guide covering car, boat, and airplane scenarios\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Flysky","offers":[{"title":"Default Title","offer_id":47443386040605,"sku":"202412SID144","price":37.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0742\/4013\/1357\/files\/20231115-IMG_1310.jpg?v=1715245603","url":"https:\/\/soarskyrc.com\/products\/flysky-fgr4d-2-4ghz-4ch-afhds3-dual-antenna-rc-receiver","provider":"SoarSky","version":"1.0","type":"link"}