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The Radiolink R4FGM is a 2.4 GHz, 4-channel receiver with an integrated gyro, engineered for RC car control. The gyro helps keep a car straight and stable, which is useful for drifting and racing, and the receiver can be switched between gyro and normal modes.
It uses a pseudo-random FHSS algorithm for resistance to interference and reaches more than 400 m (about 1,300 ft). The body measures 0.98 x 0.51 inches and weighs 3 g.
This is the V2.2 version. It is compatible with Radiolink transmitters such as the RC6GS, RC4GS (V2 and V3), RC6GS V2 and V3, T8FB, T8S and RC8X. Binding takes about a second and does not require any controller setup.
The description says reverse polarity protection supports 3.0 to 6 V high-voltage servos, while the specification gives a voltage range of 3 to 10 V DC, so use a regulated supply that suits your servos. Mount it flat and firmly, because the gyro depends on a stable orientation, and keep the antenna clear of the motor and metal parts.
Owners of Radiolink radios who race or drift RC cars. It is not intended for aircraft.
Mount the receiver flat, level and firmly, well away from the motor and ESC, because the gyro reads the car's movement. Start with a low gyro gain and increase it slowly until steering stays straight on the straights without feeling twitchy in corners. Switch to normal mode if you want to check the car without gyro assistance.
RC cars.
Yes, with gyro and normal modes.
More than 400 m.
3 g.
Radiolink RC6GS, RC4GS, T8FB, T8S and RC8X, among others.
| Brand | Radiolink |
|---|---|
| Channels | 4.000000 |
| Frequency | 2.4GHz ISM |
| Weight | 3.000000 g |
| Selling unit | PCS |
