WebNov 28, 2007 · CTCSS (Continuous Tone-Coded Squelch System) uses sub-audible (below 300 Hz, not necessarily inaudible) tones to activate coded receivers. PL (Private Line) is Motorola's trademarked name for … WebCTCSS is the generic term for a sub-audible tone…something Motorola came up with 50 odd years ago and dubbed Private Line (which is why some of us refer to it as PL). I've set split tones up for a few GMRS repeaters (keeps the tone scanners away).
CTCSS (tone squelch) on TX & RX? — FlexRadio Community
WebJan 20, 2014 · PL and CTCSS are used to prevent a repeater from responding to unwanted signals or interference. They also lessen the annoyance of hearing other conversations when using a shared two-way … WebFeb 25, 2024 · CDCSS or Digital Code Squelch (DCS) is a further development of the continuous tone-coded squelch system or CTCSS that uses a slow-speed, binary data stream passed as sub-audible data along with the transmission. Motorola calls this Digital Private Line or DPL.It consists of a 23-bit telegram sent repeatedly on the channel at 134 … sonoff kit
A Historical and Technical Overview of Tone Squelch Systems
WebSep 12, 2015 · CTCSS and DCS are, however, used around the world, and since the question was asked without a tag (or any text) suggesting that the question was specific to any single territory, it would be best not to make such assumptions when answering. – Scott Earle ♦ Sep 13, 2015 at 1:36 Add a comment You must log in to answer this question. WebJun 25, 2024 · This data is sub-audible with most of it’s energy below 300Hz. However is does have a wide bandwidth from 2 to 300 Hz. Unlike CTCSS (Continuous Tone Coded … WebA CTCSS is a 'Tone' sent along with your voice when you transmit. The transmit tone is referred to as the Encode tone. The receive tone is referred to as the Decode tone. It is Sub-Audible. You can't hear it, but a receiver or repeater can. The 'Tone' on your TX must match the tone required by the RX on the other end. REPEATER. sonoff lan