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FS-i4X
Creative freedom and skilled design
FS-i4X is an entry-level transmitter built for fixed-wing, glider and boat models, with channel reverse and channel mixing functionality. It features the AFHDS 2A protocol and can support up to 10 channels through DIY upgrades.
AFHDS 2A / AFHDS4–10 channelsChannel reverse & mixingEntry level

The FS-i4X is a classic 4-channel transmitter with 2.4GHz and is ideal for entry-level control of fixed-wing aircraft, gliders and boats with channel reversal and channel mixing functions. The transmitter runs on the AFHDS2A protocol and can support up to 10 channels through DIY upgrades.
Features
- AFHDS 2A
- Up to 10 channels
- Incl. channel reversal and channel mixing function
- Bidirectional communication
- Multi-channel hopping frequency
- Omnidirectional antenna with amplification
- Unique ID recognition system
- Low energy consumption
| Product Model | FS- i4X |
|---|---|
| Channels | 4-10 (default 4 channels) |
| Models | Fixed Wing / Glider / Boat |
| Wireless frequency | 2.4GHz |
| Transmission power | <20 dBm |
| Wireless protocol | AFHDS 2A |
| Range | 500 ~ 1500m (in the air) |
| Channel resolution | 1024 |
| Battery | 1.5AA * 4 |
| Charging port | None |
| Low voltage alarm | < 4.2V |
| Antenna type | single antenna |
| Data port | PS / 2 (PPM) |
| Temperature range | 0 ℃ — + 60 ℃ |
| Humidity range | 20% -95% |
| Online update | No |
| Color | Black |
| Dimensions | 174x89x190mm |
| Weight | 323g |
| Certification | CE, RCM, FCC ID: N4ZFLYSKYI4 |

- FS-i4X transmitter
- FS-A6 receiver
- Bind plug
- Stick-end stickers
- Quick start guide
| Item no. | Model | PWM channels | Function | Protocol | Antenna | Data port / output | Dimensions | Weight | Shop |
|---|---|---|---|---|---|---|---|---|---|
| — | FS-X14S | 14 | — | AFHDS 2A | — | — | — | — | — |
| — | FS-X8B | 8 | — | AFHDS 2A | — | — | — | — | — |
| — | FS-X6B | 6 | — | AFHDS 2A | — | — | — | — | — |
| FS050 | FS-iA10B | 10 | — | AFHDS 2A | Dual copper tube antenna (150mm x 2) | PWM / PPM / i.bus / s.bus | 47 x 33.1 x 14.7mm | 19.3g | Buy here |
| — | FS-iA8X | 8 | — | AFHDS 2A | — | — | — | — | — |
| FS049 | FS-iA6B | 6 | — | AFHDS 2A | Dual copper tube antenna (150mm x 2) | PWM/PPM/i.bus/s.bus | 47 x 26.2 x 15mm | 10g | Buy here |
| — | FS-iA6+ | 6 | — | AFHDS 2A | — | — | — | — | — |
| — | FS-A6 | 6 | — | AFHDS 2A | — | — | — | — | — |
