The power supply voltage of the series products are ±5V ± 5%，which using TTL control(default “0”：ON；"1"：OFF.). The frequency range covered by 0.5GHz~40GHz.The products have the characteristics of small size, high reliability, low insertion loss and high isolation.The products are applied to all kinds of receiving and transmitting channels. KeyLink's switches can be categorized as follows.
Chengdu KeyLink Microwave Technology Co., Ltd. (Group Company)
Chengdu KeyLink Wireless Technology Co., Ltd. (Wholly-owned subsidiary)
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