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Is a sound meter filter and a duplexer the same thing? What's the difference between them?

The tone table filter is a single filter, and FDD generally uses duplex. There are two filters in the duplexer, one is the transmitting filter and the other is the receiving filter.

CLP Deqing Huaying Electronics Co., Ltd. was established in 1978 and has been engaged in sound meter devices for 40 years.

If necessary, you can contact Bian Gankun :jack_bian@dqhuaying.com.