Noun
CTCSS (uncountable)
(radio) Initialism of continuous tone-coded squelch system.
Any CTCSS system that has compatible tones is interchangeable. Source: Internet
DCS DCS (Digital-Coded Squelch), generically known as CDCSS (Continuous Digital-Coded Squelch System), was designed as the digital replacement for CTCSS. Source: Internet
CTCSS is often called PL tone (for Private Line, a trademark of Motorola ), or simply tone squelch. Source: Internet
In the same way that a single CTCSS tone would be used on an entire group of radios, a single five-tone sequence is used in a group of radios. Source: Internet
In the same way that a single CTCSS tone would be used on an entire group of radios, the same DCS code is used in a group of radios. Source: Internet
Old and new radios with CTCSS and radios across manufacturers are compatible. Source: Internet