RKX-750-6B是一款经济型的超低单向接收机，适用于光纤进楼及农村中偏远的住房使用。采用国际先进的GaAs HBT集成电路技术，使光接收机具有非常低的噪音功率。在相同接收光功率的条件下，CNR要比普通的光接收机提高至少5.0dB以上，在接收光功率达-6dB时，系统的载噪比CNR仍然维持在50dB以上，从而节省发送光功率。特别是在接收机光功率较低的情况下，效果更为显著。

使用超低光功率接收机的技术，可以用比较小的投资延伸光纤传输长度，也为构造大型的光纤网络寻找了一种新的方法。一方面节省了发送光功率，节省了投资，另一方面维护了原有的网络基础。

-RKX-750-6B is an economical, ultra-low one-way receiver suitable for optical fiber into the floor, and in remote rural housing use. Adopt international advanced GaAs HBT integrated circuit technology, optical receiver has a very low noise power. The same conditions of the received optical power, CNR than the ordinary optical receiver to improve least 5.0dB or more, in the received optical power is up to-6dB, the system' s carrier to noise ratio CNR is still maintained at least 50dB, thus saving the power of the transmitted light. Especially in the case of a low optical power of the receiver, the effect is more significant. Using the ultra low optical power receiver technology that can extend the length of the optical fiber transmission with a relatively small investment, but also in order to construct a large optical fiber network to find a new method. Save on sending optical power saving investments, on the other hand the maintenance of the existing network infrastructure.