Varicode

Varicode

Varicode is a Huffman code for use in PSK31. It supports all ASCII characters, but the characters used most frequently have shorter codes. The space between characters is indicated by a 00 sequence. Originally created for speeding up real-time keyboard-to-keyboard exchanges over low bandwidth links, it is a very useful format to shrink text files. Varicode is freely available. [ARRL technical description of PSK31 http://www.arrl.org/FandES/field/regulations/techchar/PSK31.html Accessed 14 May 2008] [General description by PSK31 inventor Peter Martinez, G3PLX http://det.bi.ehu.es/~jtpjatae/pdf/p31g3plx.pdf Accessed 14 May 2008]

Limitations

* Varicode does not send true 8-bit ASCII bytes.Fact|date=May 2008
* Varicode provides somewhat weaker compression in languages other than English.

Varicode table

Control characters

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References


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