{"product_id":"spektrum-ar631-dsmx-6-channel-as3x-safe-receiver","title":"Spektrum AR631+ DSMX 6-Channel AS3X+ \u0026 SAFE Receiver","description":"\u003cp data-start=\"106\" data-end=\"455\"\u003eThe \u003cstrong data-start=\"110\" data-end=\"138\"\u003eSpektrum AR631+ Receiver\u003c\/strong\u003e is a compact, feature-packed 6-channel DSMX receiver with built-in AS3X+ stabilisation, SAFE® flight envelope protection and Smart Telemetry support. Designed for sport and advanced RC aircraft, it combines next-generation stability technology with flexible installation options thanks to its extended 230mm antenna.\u003c\/p\u003e\n\u003cp data-start=\"457\" data-end=\"687\"\u003eWith fly-by range telemetry, SmartSafe and Hold Last failsafe options, plus Forward Programming setup directly from compatible Spektrum transmitters, the AR631+ delivers powerful performance without additional programming devices.\u003c\/p\u003e\n\u003cp data-start=\"689\" data-end=\"908\"\u003eThe extra-long 230mm (approx. 9”) 2.4GHz antenna allows for more versatile installation in tight fuselages, helping isolate the antenna from batteries, ESCs and other electronics for improved reception and link quality.\u003c\/p\u003e\n\u003ch2 data-start=\"915\" data-end=\"932\"\u003eKey Features\u003c\/h2\u003e\n\u003cul data-start=\"934\" data-end=\"1442\"\u003e\n\u003cli data-start=\"934\" data-end=\"988\"\u003e\n\u003cp data-start=\"936\" data-end=\"988\"\u003e6-channel DSMX receiver (DSM2 backward compatible)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"989\" data-end=\"1028\"\u003e\n\u003cp data-start=\"991\" data-end=\"1028\"\u003eBuilt-in AS3X+ stabilisation system\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1029\" data-end=\"1065\"\u003e\n\u003cp data-start=\"1031\" data-end=\"1065\"\u003eSAFE® flight envelope protection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1066\" data-end=\"1125\"\u003e\n\u003cp data-start=\"1068\" data-end=\"1125\"\u003e230mm extended 2.4GHz antenna for flexible installation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1126\" data-end=\"1196\"\u003e\n\u003cp data-start=\"1128\" data-end=\"1196\"\u003eForward Programming directly from compatible Spektrum transmitters\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1197\" data-end=\"1241\"\u003e\n\u003cp data-start=\"1199\" data-end=\"1241\"\u003eSmart Telemetry \u0026amp; Smart Throttle support\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1242\" data-end=\"1268\"\u003e\n\u003cp data-start=\"1244\" data-end=\"1268\"\u003eFly-by range telemetry\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1269\" data-end=\"1321\"\u003e\n\u003cp data-start=\"1271\" data-end=\"1321\"\u003eSmartSafe, Hold Last and preset failsafe options\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1322\" data-end=\"1367\"\u003e\n\u003cp data-start=\"1324\" data-end=\"1367\"\u003eStreamlined top-pin lightweight hard case\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1368\" data-end=\"1412\"\u003e\n\u003cp data-start=\"1370\" data-end=\"1412\"\u003ePush-button bind–no bind plug required\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1413\" data-end=\"1442\"\u003e\n\u003cp data-start=\"1415\" data-end=\"1442\"\u003eStandard servo connectors\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"1449\" data-end=\"1470\"\u003eAS3X+ Technology\u003c\/h2\u003e\n\u003cp data-start=\"1472\" data-end=\"1705\"\u003eExclusive AS3X+® stabilisation enhances flight performance by counteracting wind, turbulence and external disturbances. The improved algorithm provides smoother, more precise handling and can be tuned quickly via Forward Programming.\u003c\/p\u003e\n\u003ch2 data-start=\"1712\" data-end=\"1733\"\u003eSAFE® Technology\u003c\/h2\u003e\n\u003cp data-start=\"1735\" data-end=\"1921\"\u003eSAFE® (Sensor Assisted Flight Envelope) technology works alongside AS3X+ to provide bank and pitch limits, helping prevent extreme attitudes while maintaining natural flight performance.\u003c\/p\u003e\n\u003ch2 data-start=\"1928\" data-end=\"1965\"\u003eSmart Telemetry \u0026amp; Smart Throttle\u003c\/h2\u003e\n\u003cp data-start=\"1967\" data-end=\"2293\"\u003eWhen paired with a compatible Smart ESC and telemetry-capable Spektrum DSMX transmitter, the AR631+ enables one-wire Smart Throttle operation. The throttle port (Channel 1) automatically detects a Smart ESC and allows telemetry data such as voltage, current, temperature and RPM to be transmitted directly to your transmitter.\u003c\/p\u003e\n\u003cp data-start=\"2295\" data-end=\"2475\"\u003eESCs fitted with Smart and IC series connectors can also relay battery data from compatible Spektrum Smart batteries. Spektrum Avian™ ESCs are fully compatible with Smart features.\u003c\/p\u003e\n\u003cp data-start=\"2477\" data-end=\"2559\"\u003eIf a standard ESC is connected, the throttle port operates as a normal PWM output.\u003c\/p\u003e\n\u003cp data-start=\"2561\" data-end=\"2618\"\u003e\u003cem data-start=\"2561\" data-end=\"2616\"\u003eNote: Not compatible with Spektrum telemetry sensors.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2 data-start=\"2625\" data-end=\"2649\"\u003eForward Programming\u003c\/h2\u003e\n\u003cp data-start=\"2651\" data-end=\"2819\"\u003eConfigure AS3X+, SAFE and failsafe settings wirelessly through the Forward Programming menu on compatible Spektrum transmitters no computer or mobile device required.\u003c\/p\u003e\n\u003cp data-start=\"2821\" data-end=\"2942\"\u003e\u003cem data-start=\"2821\" data-end=\"2942\"\u003eForward Programming not supported on DX6i, DX6G2 (EU), DX7, DX7S, DX7SE, DX7G2 (EU), DX8 and non-computer transmitters.\u003c\/em\u003e\u003c\/p\u003e\n\u003ch2 data-start=\"2949\" data-end=\"2992\"\u003eInstallation Advantage – 230mm Antenna\u003c\/h2\u003e\n\u003cp data-start=\"2994\" data-end=\"3256\"\u003eThe long 230mm antenna is ideal for installations where space is limited. For optimal reception, position the antenna at least 75mm away from batteries, ESCs and ignition systems. Use integrated flight log telemetry to verify signal quality during range testing.\u003c\/p\u003e\n\u003ch2 data-start=\"3263\" data-end=\"3283\"\u003eImportant Notes\u003c\/h2\u003e\n\u003cul data-start=\"3285\" data-end=\"3486\"\u003e\n\u003cli data-start=\"3285\" data-end=\"3381\"\u003e\n\u003cp data-start=\"3287\" data-end=\"3318\"\u003eSmart functionality requires:\u003c\/p\u003e\n\u003cul data-start=\"3321\" data-end=\"3381\"\u003e\n\u003cli data-start=\"3321\" data-end=\"3334\"\u003e\n\u003cp data-start=\"3323\" data-end=\"3334\"\u003eSmart ESC\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3337\" data-end=\"3381\"\u003e\n\u003cp data-start=\"3339\" data-end=\"3381\"\u003eSmart telemetry-capable DSMX transmitter\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3382\" data-end=\"3437\"\u003e\n\u003cp data-start=\"3384\" data-end=\"3437\"\u003eFirmware updates may be required for Smart features\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3438\" data-end=\"3486\"\u003e\n\u003cp data-start=\"3440\" data-end=\"3486\"\u003eNot recommended for turbine-powered aircraft\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"3493\" data-end=\"3509\"\u003ePerfect For\u003c\/h2\u003e\n\u003cul data-start=\"3511\" data-end=\"3699\"\u003e\n\u003cli data-start=\"3511\" data-end=\"3529\"\u003e\n\u003cp data-start=\"3513\" data-end=\"3529\"\u003eSport aircraft\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3530\" data-end=\"3544\"\u003e\n\u003cp data-start=\"3532\" data-end=\"3544\"\u003eBNF models\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3545\" data-end=\"3567\"\u003e\n\u003cp data-start=\"3547\" data-end=\"3567\"\u003eAerobatic aircraft\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3568\" data-end=\"3600\"\u003e\n\u003cp data-start=\"3570\" data-end=\"3600\"\u003eTight fuselage installations\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3601\" data-end=\"3662\"\u003e\n\u003cp data-start=\"3603\" data-end=\"3662\"\u003ePilots wanting built-in stabilisation and SAFE protection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"3663\" data-end=\"3699\"\u003e\n\u003cp data-start=\"3665\" data-end=\"3699\"\u003eSmart Technology-equipped builds\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"3706\" data-end=\"3726\"\u003eProduct Summary\u003c\/h2\u003e\n\u003cp data-start=\"3728\" data-end=\"4038\"\u003eThe Spektrum AR631+ is a 6-channel DSMX receiver featuring AS3X+ stabilisation, SAFE® flight envelope protection, Smart Telemetry support and a versatile 230mm antenna for improved installation flexibility. With Forward Programming and push-button binding, it offers advanced performance with simplified setup.\u003c\/p\u003e\n\u003ch2 data-start=\"4045\" data-end=\"4064\"\u003eSpecifications\u003c\/h2\u003e\n\u003cul data-start=\"4066\" data-end=\"4460\"\u003e\n\u003cli data-start=\"4066\" data-end=\"4081\"\u003e\n\u003cp data-start=\"4068\" data-end=\"4081\"\u003eChannels: 6\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4082\" data-end=\"4118\"\u003e\n\u003cp data-start=\"4084\" data-end=\"4118\"\u003eProtocol: DSMX (DSM2 compatible)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4119\" data-end=\"4143\"\u003e\n\u003cp data-start=\"4121\" data-end=\"4143\"\u003eStabilisation: AS3X+\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4144\" data-end=\"4172\"\u003e\n\u003cp data-start=\"4146\" data-end=\"4172\"\u003eFlight Protection: SAFE®\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4173\" data-end=\"4220\"\u003e\n\u003cp data-start=\"4175\" data-end=\"4220\"\u003eTelemetry: Fly-by telemetry (via Smart ESC)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4221\" data-end=\"4246\"\u003e\n\u003cp data-start=\"4223\" data-end=\"4246\"\u003eAntenna Length: 230mm\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4247\" data-end=\"4280\"\u003e\n\u003cp data-start=\"4249\" data-end=\"4280\"\u003eBind Method: Push-button bind\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4281\" data-end=\"4333\"\u003e\n\u003cp data-start=\"4283\" data-end=\"4333\"\u003eCase Type: Lightweight hard case, top-pin layout\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4334\" data-end=\"4375\"\u003e\n\u003cp data-start=\"4336\" data-end=\"4375\"\u003eSmart Throttle: Channel 1 auto-detect\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"4376\" data-end=\"4460\"\u003e\n\u003cp data-start=\"4378\" data-end=\"4460\"\u003eCompatibility: Spektrum DSMX transmitters (telemetry-capable for Smart features)\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2 data-start=\"4467\" data-end=\"4502\"\u003eWhy Buy from Probuild Aircraft\u003c\/h2\u003e\n\u003cp data-start=\"4504\" data-end=\"4646\"\u003e✅ Official UK Spektrum Stockist – 100% Genuine\u003cbr data-start=\"4550\" data-end=\"4553\"\u003e✅ Trusted by Top International Pilots\u003cbr data-start=\"4590\" data-end=\"4593\"\u003e✅ Fast UK Shipping\u003cbr data-start=\"4611\" data-end=\"4614\"\u003e✅ Trusted by Pilots Since 1993\u003c\/p\u003e","brand":"Spektrum","offers":[{"title":"Default Title","offer_id":56382011769218,"sku":"P-SPM-1031","price":89.99,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0934\/7711\/0146\/files\/P-SPM-1031.jpg?v=1771328144","url":"https:\/\/www.probuild-uk.co.uk\/products\/spektrum-ar631-dsmx-6-channel-as3x-safe-receiver","provider":"Probuild Aircraft Ltd","version":"1.0","type":"link"}