{"product_id":"radiolink-r4fgm-2-4ghz-4-channel-mini-rc-receiver-compact-gyro","title":"Radiolink R4FGM 2.4Ghz 4-Channel Mini RC Receiver - Compact Gyro","description":"\u003cp\u003eIn this review the Radiolink R4FGM 2.4Ghz 4-channel mini receiver is judged on fit, range and ease of use for micro RC projects. It is aimed squarely at hobbyists who need a tiny, reliable receiver for 1:28 scale cars and similar micro vehicles; the single biggest reason to buy is its combination of an \u003cstrong\u003eintegrated gyro\u003c\/strong\u003e and extreme compactness that lets it fit where full-size receivers cannot. Binding is simple and the receiver supports high voltage servos, making it a practical upgrade for small drifting and on-road builds.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eMini size:\u003c\/strong\u003e At 0.98 x 0.51 in and about 0.1 oz it fits inside tight chassis spaces used by 1:28 scale cars.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIntegrated gyro:\u003c\/strong\u003e The built-in gyro helps keep small vehicles in a straight line and allows sensitivity adjustment from the transmitter for drifting or precise on-road control.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGood range:\u003c\/strong\u003e The pseudo random FHSS algorithm provides reliable anti-interference performance and control range up to about 1300 ft on flat ground.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWide input voltage:\u003c\/strong\u003e The 3.0-6V power range supports high voltage servos so users can run stronger steering actuators without a separate BEC.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eReverse polarity protection:\u003c\/strong\u003e The receiver is protected if power polarity is accidentally reversed, preventing immediate damage in the field.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSimple bind and mode switching:\u003c\/strong\u003e Binding requires a one second press and a quick triple press toggles gyro mode, reducing setup fuss.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe R4FGM is ideal for hobbyists building micro RC cars, small boats, or any project requiring a \u003cstrong\u003ecompact 4-channel receiver\u003c\/strong\u003e with gyro assistance; its tiny footprint and light weight are perfect for 1:28 class vehicles and Hot Wheels-style conversions. It also suits modders who need an easy bind process and adjustable gyro for drifting practice.\u003c\/p\u003e\n\u003cp\u003eIt is not suited for users who need compatibility with non-Radiolink transmitters or those who require more than four channels. If you need long-range telemetry or advanced protocol support beyond Radiolink radios, this receiver is not the best choice.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eVery compact and lightweight, making it easy to install in tight micro chassis.\u003c\/li\u003e\n\u003cli\u003eBuilt-in gyro with transmitter-adjustable sensitivity improves straight-line stability and drift control.\u003c\/li\u003e\n\u003cli\u003eReliable binding and good on-ground range thanks to FHSS anti-interference.\u003c\/li\u003e\n\u003cli\u003eReverse polarity protection and support for 3.0-6V reduce the risk of damage and allow high voltage servos.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eOnly compatible with Radiolink transmitters, so it will not work with many other radio brands.\u003c\/li\u003e\n\u003cli\u003eLimited to four channels, so it is not suitable for vehicles needing more channels or complex telemetry.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eChannels\u003c\/td\u003e\n\u003ctd\u003e4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003e0.98 in x 0.51 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eWeight\u003c\/td\u003e\n\u003ctd\u003e~0.1 oz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOperating voltage\u003c\/td\u003e\n\u003ctd\u003e3.0-6V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRange\u003c\/td\u003e\n\u003ctd\u003eUp to 1300 ft (approx 400 m) on ground\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eKey feature\u003c\/td\u003e\n\u003ctd\u003eIntegrated gyro with transmitter-adjustable sensitivity\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatibility\u003c\/td\u003e\n\u003ctd\u003eRadiolink radios (RC8X, RC4GS V3\/V2, RC6GS V3\/V2, T8S, T8FB, T12D, T16D)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe Radiolink R4FGM is a practical, value-oriented receiver for micro RC cars and small boats where space is at a premium; its \u003cstrong\u003eminiature size\u003c\/strong\u003e, built-in gyro and simple bind procedure make it a strong choice for hobbyists who use Radiolink transmitters and want improved handling without complex setup. It offers good range and protection features for the price, but buyers needing cross-brand compatibility or more channels should look elsewhere.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eWill this work with non-Radiolink transmitters?\u003c\/strong\u003e\u003cbr\u003eNo. The R4FGM is designed for Radiolink radios and is not compatible with non-Radiolink transmitters.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCan I adjust the gyro strength?\u003c\/strong\u003e\u003cbr\u003eYes. Gyro sensitivity can be adjusted from the transmitter and gyro mode is toggled with a quick triple press.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat voltage servos can I run?\u003c\/strong\u003e\u003cbr\u003eThe receiver supports 3.0-6V input, so high voltage servos are supported without extra converters.\u003c\/p\u003e","brand":"Radiolink","offers":[{"title":"Default Title","offer_id":48196725440731,"sku":"B09TKJBXS1","price":33.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/712JzDdUqXL._AC_SL1500.jpg?v=1770192220","url":"https:\/\/gearmusthave.com\/products\/radiolink-r4fgm-2-4ghz-4-channel-mini-rc-receiver-compact-gyro","provider":"GearMustHave","version":"1.0","type":"link"}