Product overview
The RadioLink R8FG provides radio control for model cars, including crawlers, tanks and caterpillars, as well as boats and robots. Its dual-antenna receiver combines eight channels, an integrated gyro and built-in telemetry. The body measures 35 × 24 × 13.5 mm and weighs 10.5 g, with an antenna length of 205 mm. The supplied package contains the R8FG receiver, an engine voltage telemetry connection cable and a packaging bag. Gyro sensitivity can be adjusted using the PS3 switch.
The output configuration supports eight PWM channels or a combined mode with PWM on CH1–CH7 and SBUS on CH8. Operating power is 3–12 V, with current consumption of 35 mA at 5 V and protection against reversed power polarity. Telemetry displays RSSI and receiver voltage after binding. Model battery voltage monitoring requires wiring to the ESC, battery and receiver telemetry port, supports up to 8S (33.6 V), and needs no additional module. Nano-coated circuitry and pins provide IPX4 splash protection.
The R8FG operates in the 2.4 GHz ISM band using FHSS with 67-channel pseudo-random frequency hopping, with a ground control distance of up to 600 meters. Selecting 3, 4 or 14 ms response requires an RC8X running firmware V1.1.5 or later with FHSS V2 selected, plus an R8FG bearing a V2.1 tag or PASS factory date of 2023/4/26 or later. Other transmitters default to 14 ms. Recommended settings are 14 ms for analog servos and 4 or 3 ms for digital servos.
Specifications
| Specification | Value & conditions |
|---|---|
| Product architecture | RadioLink R8FG eight-channel dual-antenna receiver. |
| Applicable models | Cars, including crawlers, tanks and caterpillars; boats; robots. |
| Dimensions | L × W × H: 35 × 24 × 13.5 mm (1.38 × 0.94 × 0.53 inches). |
| Antenna length | 205 mm (8.07 inches). |
| Weight | 10.5 g (0.37 oz). |
| Operating voltage | 3–12 V. |
| Operating current | 35 mA.At 5 V. |
| Channel count | 8 channels. |
| Signal interfaces | SBUS and PWM. |
| PWM outputs and indication | Eight PWM channels; continuously illuminated green or green plus red LEDs indicate PWM output.PWM working mode. |
| Combined output allocation | CH1–CH7 output PWM and CH8 outputs SBUS; a continuously illuminated blue LED indicates this mode.PWM+SBUS working mode. |
| Selectable response latency | Selectable 3 ms, 4 ms or 14 ms response; 14 ms is recommended for analog servos and 4 ms or 3 ms for digital servos.Bound to RC8X with firmware V1.1.5 or above and FHSS V2 selected; R8FG must have a V2.1 tag or PASS factory date of 2023/4/26 or later. |
| Default response latency | 14 ms.Bound to transmitters other than RC8X. |
| Built-in telemetry | RSSI, receiver voltage and model battery voltage telemetry; no additional module required.RSSI and receiver voltage display after binding; model battery voltage requires a wire connection to the ESC, battery and R8FG telemetry port. |
| Maximum telemetry battery | Maximum 8S (33.6 V).Model battery voltage telemetry. |
| Integrated gyro | Integrated gyro with software filtering and a PID algorithm. |
| Gyro sensitivity adjustment | Gyro sensitivity adjustable using the PS3 switch. |
| Splash protection | IPX4 splash protection with nano-coating treatment on the PCB and pins. |
| Frequency band | 2.4 GHz ISM band (2400 MHz–2483.5 MHz). |
| Spread spectrum | FHSS with 67-channel pseudo-random frequency hopping. |
| Control distance | Up to 600 meters.On the ground. |
| Compatible transmitters | RC8X, RC6GS V3, RC4GS V3, RC6GS V2, RC4GS V2, RC6GS, RC4GS, T8FB(BT), T8S(BT), T8FB(OTG) and T8S(OTG), subject to the specified version requirements.RC6GS requires the 3-position switch version; RC4GS requires the version with P.D AFTER 180101. |
| Subsidiary ID function | Supports subsidiary ID assignment among multiple bound receivers for applications such as model car or boat rescue.Multiple bound receivers. |
| Reverse-polarity protection | Receiver protection against reversed power polarity.Power polarities mistakenly connected. |
| Supplied configuration | R8FG receiver, engine voltage telemetry connection cable and packaging bag. |
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