Duplexer

Duplexer
Commercial 19" rack mount antenna filter
Isolation typical >75 dB
Insertion Loss typical < 1.0 dB

A duplexer is a device that allows bi-directional (duplex) communication over a single channel.

In radar and radio communications systems, it isolates the receiver from the transmitter while permitting them to share a common antenna. Most radio repeater systems include a duplexer.

Note 1: A duplexer must be designed for operation in the frequency band used by the receiver and transmitter, and must be capable of handling the output power of the transmitter.

Note 2: A duplexer must provide adequate rejection of transmitter noise occurring at the receive frequency, and must be designed to operate at, or less than, the frequency separation between the transmitter and receiver.

Note 3: A duplexer must provide sufficient isolation to prevent receiver desensitization.

Source: from Federal Standard 1037C

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Look at other dictionaries:

  • duplexer — [ dyplɛkse ] v. tr. <conjug. : 1> • 1939; de duplex (1o) ♦ Télécomm. Transmettre en duplex. ● duplexer verbe transitif (de duplex) Réaliser un duplexage. duplexer [dyplɛkse] v. tr …   Encyclopédie Universelle

  • duplexer — du plex*er, n. (Radio) a device which switches electronic circuitry so that a radio antenna can function as either a transmitting or receiving antenna. [PJC] …   The Collaborative International Dictionary of English

  • Duplexer — Schema Ein Duplexer ist eine Filterbaugruppe, der abhängig von bestimmten Regeln zwei Eingänge mit einem Ausgang verbindet. An diesen Duplexer werden extreme Anforderungen gestellt: es müssen sehr hohe Sendeleistungen zur Antenne geschaltet… …   Deutsch Wikipedia

  • duplexer — noun Date: circa 1932 a switching device that permits alternate transmission and reception with the same radio antenna …   New Collegiate Dictionary

  • duplexer — /dooh plek seuhr, dyooh /, n. Electronics. an automatic electronic switching device that permits the use of the same antenna for transmitting and receiving. [1950 55; DUPLEX + ER1] * * * …   Universalium

  • duplexer — du·plex·er …   English syllables

  • duplexer — /ˈdjuplɛksə/ (say dyoohpleksuh) noun a radio system which permits simultaneous transmission and reception of signals …  

  • duplexer — sə(r) noun ( s) : a switching device that utilizes two electron tubes to permit alternate transmission and reception with the same radar antenna …   Useful english dictionary

  • DUPLXR — Duplexer NASA …   Acronyms

  • DUPLXR — Duplexer ( > NASA Acronym List ) …   Acronyms von A bis Z

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