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KU LNB TV Receiver CR320 Single Head Universal

Short Description:

Sichuan Junhengtai Electronic Appliance Co., Ltd. was established in 2005. It is a national high-tech enterprise focusing on the development, production and sales of household electrical components, specializing in small and medium-sized enterprises. The company has its own unique advantages in the field of home appliance accessories. It produces products such as washing machines, air conditioners, TV series main boards, power boards, satellite tuners and LED backlights,lnb and etc .

Product Detail

Product Tags

Product Detail

CR320LNB is a universal model low noise block converter (Low Noise Block, LNB) product, mainly used in the process of receiving satellite signals.


It is widely used in satellite TV, satellite communication and satellite navigation and other fields. CR320LNB adopts high-performance low-noise amplifier and block converter to realize accurate and fast signal reception and conversion, and has the characteristics of excellent performance stability and low noise figure.


The use of CR320LNB is very simple, just connect the LNB to the interface of the satellite antenna, and connect the output interface of the LNB to the receiver or satellite tuner. You also need to pay attention to some details during use, such as: confirm the corresponding relationship between the installation location and the satellite signal before installation, pay attention to the parameters of different types of LNB, pay attention to the matching of the frequency of the satellite signal and the input signal frequency of the satellite communication station, etc.
LNB (Low Noise Block Converter) is an important part of the satellite antenna to receive satellite signals. Its main function is to convert the received weak high-frequency signal into a lower frequency signal, and then send it to the indoor receiver for processing, making the signal easier to transmit and analyze.  The working process of LNB is divided into two steps: amplification and conversion. In the amplification stage, the high-frequency signal is received by the LNB through the antenna, and the low-noise amplifier (LNA) inside the LNB amplifies the signal.  LNA is one of the most important parts in LNB. Its main function is to improve the signal-to-noise ratio of the signal and reduce the received noise, thereby improving the reliability and quality of the signal. In the conversion stage, there is also a converter inside the LNB to convert the high-frequency signal into a low-frequency signal. The converter contains a local oscillator (LO) with a fixed output frequency. The sum of the high-frequency signal and the frequency of the local oscillator is called the up-conversion frequency.  The converter inside the LNB subtracts the frequency of the local oscillator from the up-conversion frequency, resulting in a lower frequency signal output. This signal is sent to the receiver through the output port of the LNB for further processing and decoding by the receiver. In short, the LNB is the part that the satellite antenna must pass through after receiving satellite signals. Its function is to amplify and convert high-frequency and weak satellite signals into low-frequency signals for processing by the receiver.  LNB has the characteristics of low noise, high amplification gain, frequency conversion, etc., and is an indispensable and important part of the satellite communication system.

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