In telecommunications, Continuous Tone-Coded Squelch System or CTCSS is one type of in-band signaling that is used to reduce the annoyance of listening...

years. CTCSS is often called PL tone (for Private Line, a trademark of Motorola), or simply tone squelch. General Electric's implementation of CTCSS is called...

(9H1BBS-L) DTMF Access 145300 CTCSS 77 Hz (Owned by G0DEO/9H1IA) 1 VHF/UHF 9H1IA-L Frequency Agile CrossBand Link CTCSS 151.4 Hz (Owned by G0DEO/9H1IA)...

of selcall has dropped since the introduction of CTCSS. Continuous tone coded squelch system (CTCSS) allows a group of radios set with the same tone to...

(Europe): Channel 1 analog (446.00625 MHz, CTCSS 100.0 Hz, channel 1/12), Channel 8 analog (446.09375 MHz, CTCSS 123.0 Hz, channel 8/18). PMR446 (Europe):...

Maximum power is 500 mW ERP and equipment must be used on a mobile basis. CTCSS is usually used, with more upmarket models also featuring DCS and/or fixed-carrier...

to create addressing systems. The crudest and oldest of these is called CTCSS, or Continuous Tone-Controlled Squelch System. This consists of superimposing...

digital code. Selective calling systems can overlap; e.g. a radio may have CTCSS and DTMF calling. Selective calling prevents the user from hearing others...

technology called CTCSS or DCS that helps block out unwanted transmissions. To make MURS two-way radios work together, they must have matching CTCSS or DCS tones...

many others using them for communication. Now facilities such as DTMF and CTCSS provide additional calling selection. Because the antenna may be mounted...