DCS stands for Digitally Coded Squelch. Digital subtone (DCS) has 104 subtones. Compared to CTCSS toneS, the code speed is faster, the bit error rate is lower, and much users in the same channel. ... DCS is newer than CTCSS, and has more codes.

Which is better CTCSS or DCS privacy codes?

DCS works much better in urban high noise environments and in my opinion produces a much nicer "sound environment". There is voice, then no voice, without the CTCSS hiss and crash at the end.

What is the use of CTCSS or DCS?

CTCSS (Continuous Tone Coded Squelch System) uses continuous tones below 300 Hz whereas DCS (Digital-Coded System) uses digital data or encoded-words which are very unique and all encoded words can be used on the same channel without interference.