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Public-images-osm logo.svg communication:amateur_radio:repeater:dcs
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Describing DCS activation code of a amateur radio repeater. Edit or translate this description.
Group: Amateur_radio
Used on these elements
may be used on nodesshould not be used on waysmay be used on areasshould not be used on relations
Useful combination
Status: in use

Use communication:amateur_radio:repeater:dcs=* to assign the DCS activation code of a amateur radio repeater.


The DCS activation code is a 3-digit octal number.

Technical Details

DCS (Digital-Coded Squelch) is commonly known as CDCSS (Continuous Digital-Coded Squelch System). This system adds a 134.4 bps (sub-audible) bitstream to the transmitted audio to open receiver audio output. In amateur radio repeaters this starts re-transmission of received signal as well. More details can be found at wikipedia:Digital-Coded Squelch.