du·plex·er
| \ ˈdü-ˌplek-sər
also ˈdyü- \
also ˈdyü- \
Definition of duplexer
: a switching device that permits alternate transmission and reception with the same radio antenna
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“Duplexer.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/duplexer. Accessed 15 Aug. 2022.
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Time Traveler for duplexer
The first known use of duplexer was circa 1932
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