FlySky Tr8M 8-Channel AFHDS 3 Micro Receiver

The FlySky Tr8M is an ultra-lightweight 8-channel AFHDS 3 receiver for compact educational, competition, and recreational models. Its 0.5g board, single antenna, wide 3.0–9.0V/DC input, configurable Newport interfaces, and telemetry support make it a practical choice when space and wiring flexibility matter. In This Guide Key Features Specifications Compatibility Binding, Firmware & Failsafe Installation Notes FAQ FlySky Tr8M receiver board and single antenna — available at SoarSky Compact Tr8M board viewed at an angle — available at SoarSky Key Features ✅ AFHDS 3 Receiver — works with compatible FlySky AFHDS 3 transmitters for modern model-control setups ✅ Ultra-Lightweight Micro Board — weighs 0.5g and measures 16.5 × 11.8 × 2.5mm without adding bulk to compact models ✅ Eight PWM Channels — provides 8-channel PWM output for educational, competition, and recreational models ✅ Configurable Newport Interfaces — two Newport connectors support selectable PWM, PPM, i-BUS2, S.BUS, and i-BUS signal types ✅ Wide-Voltage Input — accepts 3.0–9.0V/DC and supports 4096-step channel resolution ✅ Telemetry and Firmware Support — supports one-way or two-way transmission, telemetry, and firmware updates through FlySkyAssistant 3.0 or later Tr8M retail package reference — available at SoarSky ↑ Back to Contents Specifications Source: FlySky official specifications in the supplied Tr8M User Manual 2026. SpecificationDetails ModelTr8M ProtocolAFHDS 3 Frequency2.4GHz ISM PWM channels8 Bands171 Maximum RF power<20dBm E.I.R.P. (EU) AntennaSingle antenna Operating voltage3.0–9.0V/DC Resolution4096 Data outputPWM, PPM, i-BUS2, S.BUS, i-BUS Dimensions16.5 × 11.8 × 2.5mm Body weight0.5g Temperature range-10°C to +60°C Humidity range20%–95% Firmware updateSupported CertificationCE, SRRC, FCC ID: 2A2UNTR8M00 Tr8M board markings and antenna detail — available at SoarSky ↑ Back to Contents Compatibility The Tr8M is designed for transmitters based on the AFHDS 3 protocol. The supplied FlySky manual lists the PL18 Ultra and PA01 as compatible transmitter examples. It is intended for educational, competition, and recreational models. Before installation, confirm that your transmitter is configured for AFHDS 3 and that the required output type matches your model’s flight controller, servo, or other connected equipment. The Tr8M is not an AFHDS 2A receiver. ↑ Back to Contents Binding, Firmware & Failsafe One-Way and Two-Way Binding The receiver supports one-way and two-way binding. After power-on, it waits for the bound transmitter; if no signal is detected within 2 seconds, it automatically enters binding mode for 3 seconds. The LED flashes quickly during binding, flashes slowly while waiting for connection, and stays solid after a successful connection. Set the transmitter to the required 1 WAY or 2 WAY RF standard and place it in binding mode. Power on the receiver and follow the LED indication for the selected binding process. After binding, confirm that the receiver LED is solid and test the transmitter, receiver, and model before operation. Firmware Updates Firmware updates require FlySkyAssistant version 3.0 or later. Updates can be performed after the transmitter and receiver are bound, or by using the receiver’s forced-update procedure described in the supplied manual. Forced update mode uses the CH1 and CH2 signal pins and should only be attempted by users who understand the wiring and safety procedure. Failsafe Modes The Tr8M supports No Output, Hold, and Fixed Value failsafe modes. For bus signals such as PPM, i-BUS, S.BUS, and i-BUS2, review the signal-specific failsafe behavior before assigning individual channel settings. ↑ Back to Contents Installation Notes ⚠️ Install and calibrate the receiver correctly before operating the model. Power on the transmitter before the receiver, and power off the receiver before the transmitter. Mount the receiver away from motors, electronic speed controllers, and other sources of excessive electrical noise. Keep the single antenna at least 1cm away from conductive materials such as carbon or metal. Follow safe soldering practices and inspect all solder joints after welding or wiring work. The supplied manual does not specify the package contents. Confirm included wires, connectors, or accessories before ordering if they are important to your installation. Tr8M packaging and receiver overview — available at SoarSky ↑ Back to Contents FAQ Which transmitters are compatible with the FlySky Tr8M? The Tr8M is compatible with AFHDS 3 transmitters. The supplied FlySky manual lists the PL18 Ultra and PA01 as examples. What signal outputs does the Tr8M support? It supports PWM, PPM, i-BUS2, S.BUS, and i-BUS output types. The two Newport interfaces can be customized for supported signal functions. What voltage does the Tr8M require? The specified operating voltage is 3.0–9.0V/DC. Does the Tr8M support telemetry and two-way communication? Yes. The receiver supports one-way and two-way transmission and telemetry when used with a compatible AFHDS 3 transmitter and setup. Which failsafe modes are available? The available modes are No Output, Hold, and Fixed Value. Select the mode according to the signal type and safety requirements of your model. ↑ Back to Contents Need a tiny AFHDS 3 receiver for a compact model? Choose the FlySky Tr8M when low weight, configurable signal outputs, and telemetry support fit your setup.