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About product and suppliers:
            1,609 rf directional coupler products are offered for sale by suppliers on Alibaba.com, of which telecom parts accounts for 37%, other communication & networking modules accounts for 2%, and transformers accounts for 2%. 

A wide variety of rf directional coupler options are available to you, 

There are 820 suppliers who sells rf directional coupler on Alibaba.com, mainly located in Asia. The top countries of suppliers are India, China, and India, from which the percentage of rf directional coupler supply is 1%, 98%, and 1% respectively.