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...

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...

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...

(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)...

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...

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

Marine VHF radio Maritime mobile amateur radio Signaling / Selective calling CTCSS D-STAR Dual-tone multi-frequency MDC-1200 Push-to-talk Quik-Call I Quik-Call...

come down, it is possible to add advanced squelch capabilities such as CTCSS (analog squelch) and DCS (digital squelch) (often marketed as "privacy codes")...

935-941 MHz public safety bands Continuous Tone-Coded Squelch System (CTCSS), used by many public safety agencies, is available above 400 MHz and below...

FRS radios frequently have provisions for using sub-audible tone squelch (CTCSS and DCS) codes, filtering out unwanted chatter from other users on the same...

available in the United Kingdom due to Ofcom regulations). Features include CTCSS support, DCS support, 128 programming channels, repeater support, dual watch...

assigned tone was received. Ground mobile radios used a similar system called CTCSS (Continuous Tone-Coded Squelch System); this continues to be used in non-professional...

Analog narrowband capable (12.5 kHz) 2 and 20 meter immersible variants CTCSS tones Retransmission between handheld radios (with special purpose filters...

kHz. Channels are on 12.5 kHz centers. (7) National GMRS calling channel (CTCSS tone 141.3 Hz). Note: Some inexpensive GMRS mobiles and portables do not...

to using in band signaling such as Continuous Tone-Coded Squelch System (CTCSS) tone or Digital-Coded Squelch (DCS) codes for access control. Instead they...

to describe an implementation of a Continuous Tone-Coded Squelch System (CTCSS), a method of using low-frequency subaudible tones to share a single radio...

trivia: this article shows that signal fades occur at audio frequencies near CTCSS tones, explaining why only DCS was used in Motorola 800 MHz systems in the...

frequently open up to propagate globally, most 10-meter repeaters use a CTCSS sub-audible access tone. 16 kHz-wide signals with 5 kHz deviation is normal...

radiated power. 70-centimeter band CDCSS Continuous Tone-Coded Squelch System (CTCSS) General Mobile Radio Service KDR 444 LPD433 Multi-Use Radio Service Personal...

distant user appears to be repeated through the system, (possibly on the same CTCSS tone as was configured in Repeater 7). This appears to be a distant co-channel...

Chicago. Many recent models will allow scanning of the specific DCS or CTCSS code used on a specific frequency should it have multiple users. Memory...

Marine VHF radio Maritime mobile amateur radio Signaling / Selective calling CTCSS D-STAR Dual-tone multi-frequency MDC-1200 Push-to-talk Quik-Call I Quik-Call...

speaker, microphone, and controls for options such as channel selection or CTCSS switches. This limited a base station to being within tens to hundreds of...

Marine VHF radio Maritime mobile amateur radio Signaling / Selective calling CTCSS D-STAR Dual-tone multi-frequency MDC-1200 Push-to-talk Quik-Call I Quik-Call...

downlink FM, data transmission DUV 200 bit/s and FSK 9600 bit/s, 400 - 800 mW 435.350 MHz uplink FM CTCSS 67.0 Hz 1,267,350 MHz uplink FM CTCSS 67.0 Hz...

Basic base station elements used in a remote-controlled installation. Selective calling options such as CTCSS are optional....