Product overview
The RadioLink R7FG is a seven-channel receiver for model cars and boats, combining dual antennas with an integrated gyro and support for high-voltage servos. Its body measures 35 × 22 × 14 mm and weighs 6 g; antenna length is 205 mm. Communication uses 2.4 GHz ISM and FHSS with 67-channel pseudo-random frequency hopping. The supplied configuration consists of one R7FG receiver, one packing bag and one engine-voltage telemetry connection cable.
The receiver operates from 3–12 V and supports PWM, PPM and SBUS connections. A green or red LED indicates PWM output across CH1–CH7. With a blue or purple LED, CH1–CH5 output PWM, CH6 outputs PPM and CH7 outputs SBUS. Ground control distance reaches up to 600 meters. V1.2 and V1.3 receivers carry IPX4 splash protection, and the PCB and pins receive nano-coating. Reverse-polarity protection is also provided, alongside storage for ten subsidiary IDs across multiple bound receivers.
Real-time telemetry covers RSSI, receiver voltage and model voltage, with two-way transmission requiring the corresponding latest transmitter firmware to be flashed. The specified RC6GS V6.0.0 firmware applies only to the three-position-switch version; RC4GS V6.0.1 applies only to units produced after January 1, 2018. RSSI and receiver voltage display after binding. Model-voltage display requires connecting the battery to the Telemetry port through the supplied cable, supports up to an 8S battery and needs no additional backhaul module.
Specifications
| Specification | Value & conditions |
|---|---|
| Product architecture | RadioLink R7FG seven-channel dual-antenna receiver |
| Model application | Car/Boat |
| Dimensions | 35*22*14mm (1.38*0.87*0.55") |
| Antenna length | 205mm (8.07") |
| Weight | 6g (0.21oz) |
| Channel quantity | 7 |
| Frequency | 2.4GHz ISM |
| Spread spectrum mode | FHSS 67-channel pseudo-random frequency hopping |
| Supply voltage range | 3-12V |
| Operating current | 30mABased on power voltage. |
| Control distance | Up to 600 metersOn the ground. |
| Signal outputs | PWM+PPM+SBUS |
| PWM output mode | CH1 to CH7 output PWM.R7FG LED green or red. |
| Combined output mode | CH1 to CH5 output PWM; CH6 outputs PPM; CH7 outputs SBUS.R7FG LED blue or purple. |
| Splash protection | IPX4 water splash protectionV1.2 and V1.3 versions. |
| Protective treatment | Nano-coating on the PCB and pins |
| Gyro and servo support | Integrated gyro and high-voltage servo supportStandard supplied R7FG receiver. |
| Telemetry measurements | Real-time RSSI, receiver-voltage and model-voltage telemetryTwo-way transmission requires flashing the corresponding latest transmitter firmware; RC6GS V6.0.0 applies only to the three-position-switch version, and RC4GS V6.0.1 applies only to units produced after January 1, 2018. |
| RSSI and receiver-voltage display | RSSI and receiver voltage display after transmitter–receiver binding.Binding complete and corresponding latest transmitter firmware flashed for two-way transmission. |
| Model-voltage telemetry connection | Model-voltage display without an additional backhaul moduleBattery connected to the Telemetry port through the included voltage feedback cable; corresponding latest transmitter firmware flashed for two-way transmission. |
| Telemetry battery limit | Up to an 8S batteryModel-voltage telemetry with the corresponding latest transmitter firmware flashed. |
| Two-way telemetry firmware requirements | Flash the corresponding latest firmware; specified versions are RC6GS V6.0.0 and RC4GS V6.0.1.RC6GS three-position-switch version only; RC4GS produced after January 1, 2018 only. |
| Resolution | 4096 |
| Stability | 0.25us |
| Processor | 48MHz M0 |
| Response time | Within 12ms |
| Subsidiary ID storage | 10 subsidiary IDsMultiple bound receivers. |
| Reverse-polarity protection | Receiver protection against reversed polaritySupply polarities mistakenly connected. |
| Compatible transmitters | RC8P/RC8X/RC6GS V3/RC4GS V3/RC6GS V2/RC4GS V2/RC6GS/RC4GS/T16D/T12D/T8FB(BT)/T8S(BT)/T8FB(OTG)/T8S(OTG)RC6GS requires the three-position-switch version; RC4GS requires production after January 1, 2018. |
| Supplied configuration | One R7FG receiver, one packing bag and one engine-voltage telemetry connection cableStandard R7FG package. |
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