6
Digital proportional radio control system
2. Introduction
The FS-i4X transmitter and FS-A6 receiver constitute a 4-channel 2.4GHz AFHDS 2A digital proportional
computerized R/C system. It is compatible with fixed-wing and helicopters.
2.1 System Features
The AFHDS 2A (Automatic Frequency Hopping Digital System Second Generation) developed and
patented by FLYSKY is specially developed for all radio control models. Offering superior protection
against interference while maintaining lower power consumption and high reliable receiver sensitivity,
FLYSKY's AFHDS technology is considered to be one of the leaders in the RC market today.
Bidirectional Communication
Capable of sending and receiving data, each transmitter is capable of receiving data
from temperature, altitude and many other types of sensors, servo calibration and i-BUS
Support.
Multi-channel Hopping Frequency
This systems bandwidth ranges from 2.4055GHz to 2.475GHz. This band is divided in
140 channels. Each transmitter hops between 16 channels (32 for Japanese and Korean
versions) in order to reduce interference from other transmitters.
Omni-directional Gain Antenna
The high efficiency Omni-directional high gain antenna cuts down on interference, while
using less power and maintaining a strong reliable connection.
Unique ID Recognition System
Each transmitter and receiver has it's own unique ID. Once the transmitter and receiver
have been paired, they will only communicate with each other, preventing other systems
accidentally connecting to or interfering with the systems operation.
Low Power Consumption
The system is built using highly sensitive low power consumption components,
maintaining high receiver sensitivity, while consuming as little as one tenth the power of a
standard FM system, dramatically extending battery life.
