Z code

The Z- key (also Z groups or English. Z code) was used by radio services for efficient and unambiguous transmission of standard messages. It was originally developed for the Morse code in the commercial and military telecommunications.

He meant a considerable saving of time, as in the Morse code, each letter must be submitted separately in a sentence. The use of the Z- group was able to reduce such a time, the transmission of the claimed less time than telling the importance.

Construction

The Z key consists of three letters, which have always been led by "Z". Here, groups of ZAA is possible to ZZZ. You can display as prompts, findings, questions and answers.

Use

It was used in parallel to the Q key and had the telex traffic until the 1980s occasionally still important. In Morsetelegraphieverkehr the Z scale is now no longer apply, he was ousted by the Q key.

A key concern was the partially specified meanings of the groups that were not controlled for all radio services and thus often led to misunderstandings.

Examples

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  • Radio traffic
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