Protocols
The three 2.4 GHz systems behind the current Flysky range — Antelope for the lowest latency on the track, AFHDS 3 for the flagship air and surface radios, ANT for the sport range — as Flysky describes them.
Antelope
AntelopeAntelope Automatic Frequency Hopping Digital System
Antelope (Antelope Automatic Frequency Hopping Digital System) is a new digital wireless system developed by FLYSKY in 2025, embodying 20 years of FLYSKY's system development experience. Based on the upgraded AFHDS 3 hardware platform and equipped with a new-generation high-rate 2.4G chip, it delivers an ultra-low-latency RF RC system through optimized multi-device system timing.
Ultra-low Latency Mode
Achieves system-wide ultra-low-latency control through high-rate RF communication, optimized multi-device system timing and enhanced hardware precision.
Compatible with unidirectional and bidirectional real-time data transmission
The system features bidirectional communication. While the receiver receives data from the transmitter, the transmitter can also receive return data from the receiver itself as well as various sensors such as temperature and speed sensors. Users can monitor the model's working status in real time, enhancing operating fun and control safety. The system is also compatible with unidirectional communication.
Intelligent RF Configuration
The system automatically adapts corresponding RF configurations based on hardware characteristics, certification requirements, and product demands for data volume, anti-interference, latency and range.
Multi-frequency Hopping Operation
The system operates in the 2.4GHz ISM band with intelligent RF configuration based on actual needs. Different RF configurations result in different startup times, frequency hopping patterns and operating frequencies, actively avoiding co-channel interference.
Independent Identification System
Each transmitter and receiver in the system features a unique ID. After binding with the receiver, this ID is stored in the receiver. During operation, the receiver first verifies the ID and will not operate if verification fails. This enhances the system's active anti-interference capability and improves stability.
Low Power Consumption
Adopts low-power, high-sensitivity components and intermittent data transmission, reducing power consumption to 1/6 of the FM version and extending battery runtime.
AFHDS 3
AFHDS3Third-generation Automatic Frequency Hopping Digital System
AFHDS 3 is Flysky's third-generation automatic frequency hopping digital system: single-antenna, bidirectional, real-time data transmission for the flagship transmitters and the enhanced receivers, with the i-BUS and i-BUS2 sensor and expansion ecosystem built around it.
Single Antenna Bidirectional Real-time Data Transmission
AFHDS 3 features two-way data transmission meaning that the transmitter and receiver can both send data to each other at the same time. This increases security and stability but also enables the use of a wide range of sensors and accessories, as well as expanding the capabilities of our i-BUS and i-BUS2 expansion system. The system is also capable of one-way communication as well as binding in one-way configurations.
Passthrough Data Transmission
Passthrough data transmission, which has been added by an independent transmission module built into the system, enables the system to take data from something like a flight controller and send it back to the transmitter or vice versa.
Intelligent Automatic RF Configuration
When an AFHDS 3 module is inserted into a radio system it automatically detects the hardware, data transmission requirements, anti-interference needs, latency and range requirements as well as the certification the product has passed, then automatically configures itself to ensure the best performance for that product.
Automatic Frequency Hopping
AFHDS 3 automatically frequency hops in the range of 2.402GHz to 2.481GHz; however, depending on the outcome of the automatic RF setup, which frequencies in that range will be used will change. Not only that, but each time the system is powered on both the frequencies and the rules governing the hops will change to ensure that the chance of interference is greatly reduced.
Digital Authentication
Each transmitter and receiver have a unique ID. Once a transmitter and receiver are bound no other transmitter or receiver can send data to them. This increases the system's security and anti-interference capabilities as there can be no accidental crossover between systems.
Low Power Consumption
AFHDS 3's hardware uses low power components, strategic data transmission and high efficiency processing and amplifiers to extend battery life and reduce overall power consumption to a tenth of older FM systems.
ANT
ANTANT Automatic Frequency Hopping Digital System
ANT (ANT automatic frequency hopping digital system), developed by Flysky in 2020 with more than ten years of accumulated development experience, is a new system based on the AFHDS 2A upgraded hardware platform using a new generation of highly integrated 2.4G chip. Through the RF advanced mode function, the number of RF transmission channels, the resolution of each channel, distance, anti-interference and transmission delay can be set. With simple operations, an RF radio control system is created to meet different user demands.
Bidirectional Real-time Data Transmission
This system features two-way communication: the receiver receives data from the transmitter, and the transmitter can also receive sensor data from the receiver such as temperature and speed. Users can see the current working state of the model, which makes control more enjoyable and the model safer. It is also compatible with one-way communication.
Intelligent Automatic RF Configuration
According to the hardware characteristics, certification requirements, and the product's requirements on data volume, anti-interference, delay and distance, the system is intelligently adapted to the corresponding RF configuration.
Automatic Frequency Hopping
The system operates in the 2.4 GHz ISM band. Following the intelligent RF configuration, co-channel interference is actively avoided through different RF configurations, boot times, frequency hopping rules and frequencies.
Independent ID Recognition System
Each transmitter and receiver has a unique ID. After the transmitter binds with the receiver, the ID is stored in the receiver. When the receiver works, it authenticates this ID first; if the authentication fails, the receiver will not work. This enhances the active anti-interference ability of the system and improves its stability.
Highly Reliable System Design
This system uses a highly integrated hardware solution, which reduces electronic components while improving system stability, reliability and production consistency.
Low Power Consumption
Low-power, high-sensitivity devices and interval data transmission reduce the system's power consumption to one-sixth of the FM version, extending battery life.