RF Repeater是一種無線信號中繼產品，衡中繼器好壞的指標主要有，智慧化程度（如遠端監控等）、低IP3（無委規定小於-36dBm）、低雜訊係數（NF）、整機可靠性、良好的技術服務等。

使用直放站作為實現“小容量、大覆蓋”目標的必要手段之一，主要是由於使用直放站一是在不增加基站數量的前提下保證網路覆蓋，二是其造價遠遠低於有同樣效果的微蜂窩系統。直放站是解決通信網路延伸覆蓋能力的一種優選方案。它與基站相比有結構簡單、投資較少和安裝方便等優點，可廣泛用於難於覆蓋的盲區和弱區，如商場、賓館、機場、碼頭、車站、體育館、娛樂廳、地鐵、隧道、高速公路、海島等各種場所，提高通信品質，解決掉話等問題。

隨著移動通信市場的迅猛發展，用戶越來越希望可隨時隨地提供高品質通信。為此，移動通信服務商開始在室外、建築物內部及地下等電波難以覆蓋的盲區設置直放站，以最大限度地滿足使用者對於通話服務的需求。

The repeater is a wireless signal relay product. The main indicators to measure the quality of the repeater are the degree of intelligence (such as remote monitoring, etc.), low IP3 (less than -36dBm without commission), and low noise coefficient (NF ), machine reliability, good technical services, etc.

The use of repeaters is one of the necessary means to achieve the goal of "small capacity and large coverage", mainly because the use of repeaters is to ensure network coverage without increasing the number of base stations, and the cost is much lower than A microcellular system with the same effect. The repeater is a preferred solution for the extended coverage capability of the communication network. Compared with base stations, it has the advantages of simple structure, less investment and convenient installation. It can be widely used in blind and weak areas that are difficult to cover, such as shopping malls, hotels, airports, docks, stations, stadiums, entertainment halls, subways, tunnels, In various places such as highways and islands, improve communication quality and solve problems such as dropped calls.

With the rapid development of the mobile communications market, users increasingly expect to be able to provide high-quality communications anytime and anywhere. For this reason, mobile communication service providers have begun to set up repeaters in blind areas that are difficult to be covered by radio waves, such as outdoors, inside buildings, and underground, in order to maximize users' demand for call services.

工業中繼器

工業中繼器旨在放大通常屬於某個特定移動運營商的移動系統的特定子頻帶。幫助移動運營商填補基站的空白，幫助基站優化網絡性能，實現無縫覆蓋的目標。

工業中繼器嚴格按照ETSI、3GPP和3GPP2標準製造，並使用IF SAW濾波器，中繼器的帶外抑制非常好，只支持特定頻段的頻率。

Industrial Repeater

Industrial Repeaters are designed to amplify specific sub-band of the mobile system that usually belong to one specific mobile operator. It helps mobile operators to fill in the gaps of BTS, helps BTS to optimize the network performance and achieves the goal of seamless coverage.

Industrial repeaters are strictly made to comply with ETSI, 3GPP and 3GPP2 standards, and with the use of IF SAW filters, the out of band rejection of the repeater is quite good that it only supports specific band of the frequencies.