6. System Characteristic
系统特征
此系统采用高质量的增益天线，覆盖整个波段带宽。配合高灵敏度接收机，系统能有效的避免远距离传
播信号的干扰。
此系统使用低功率电子元件和高灵敏度接收机芯片。无线电频率模块采用间歇性信号传播，因此大大降
低了发射功率。比较而言，此系统功耗仅为FM版本的十分之一。
此系统采用信息回传功能，此功能更好的掌握当前模型的工作状态。从而增添了操控乐趣以及更加安全
控制模型。
This radio system works in the frequency range of 2.405 to 2.475GHz. This band has been divided into
142 independent channels. Each radio system uses 16 different channels and 160 different types of hopping
algorithm. By using various switch-on times, hopping scheme and channel frequencies, the system can
guarantee a jamming free radio transmission.
7.
系统模式切换 AFHDS AFHDS2A
此系统工作频率范围是2.405到2.475GHz。整个波段被分为142个独立频点。每套遥控系统使用16个
不同频点和160种不同的跳频算法。通过开机时间不同，跳频规律不同和使用不同的频点，遥控系统能避免
干扰传播信号。
This radio system uses a high gain and high quality multi directional antenna. It covers the whole frequency
band. Associated with a high sensitivity receiver, this radio system guarantees a jamming free long range radio
transmission.
Each transmitter has a unique ID. When binding with a receiver, the receiver saves that unique ID and can
accepts only data from that unique transmitter. This avoids picking another transmitter signal and dramatically
increases interference immunity and safety.
每台发射机有一个唯一的ID码， 当和接收机对码之后， 接收机保存这个唯一的ID码并且只接受从这个ID码
发射机发出的信号。 这样可以避免接收到别的发射机信号，大大增强抗干扰能力和安全性。
This radio system uses low power electronic components and a very sensitive receiver chip. The RF
modulation uses intermittent signal transmission thus reducing even more power consumption. Comparatively,
this radio system uses only a tenth of the power of a standard FM system.
This system uses the two-way communication, which could control the working state of current model better
and make the operation more enjoyable and safer than before.
开机后，如果只有LED灯闪（闪烁周期为1S）的话，为AFHDS系统，然后关机保存为AFHDS系统；
开机后，如果既有LED灯闪（闪烁周期为1S），同时又有蜂鸣器"滴滴"响，表示已切换到了AFHDS2A系统。
Digital propotional radio control system
FS-I4
6
A
1
3
2
开机，进行系统模式切换。
摇杆打到左下角。
Switch the system between AFHDS and AFHDS2
Move the stick to lower-left corner
Turn on the transmitter and switch the system
It is the AFHDS system if the LED flashes and flash period is 1 second after turning on the transmitter. Turn
off the radio to save the system as AFHDS.
After turned on, if both LED lights blink (blinking 1S), and there is buzzer "drops" sound at the same time,
which means that the system has been switched to the AFHDS2A
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