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...
19 KB (2,232 words) - 19:40, 7 April 2025
burst of five sequential tones. DCS (Digital-Coded Squelch), generically known as CDCSS (Continuous Digital-Coded Squelch System), was designed as the digital...
14 KB (1,506 words) - 02:53, 5 November 2024
describe an implementation of a Continuous Tone-Coded Squelch System (CTCSS), a method of using low-frequency subaudible tones to share a single radio channel...
2 KB (275 words) - 23:51, 15 September 2024
Project 25 (redirect from Network Access Code)
P25 systems do not have to resort to using in band signaling such as Continuous Tone-Coded Squelch System (CTCSS) tone or Digital-Coded Squelch (DCS)...
45 KB (5,186 words) - 00:48, 6 June 2025
Professional mobile radio (category Mobile radio telephone systems)
systems are Dual Tone Multiple Frequency (DTMF), and Continuous Tone Coded Squelch System (CTCSS). A DTMF selective signaling PMRS system uses a code...
18 KB (2,774 words) - 03:37, 24 February 2025
AN/ARC-210 (category Military radio systems of the United States)
806-824, 851-869, 869-902, 935-941 MHz public safety bands Continuous Tone-Coded Squelch System (CTCSS), used by many public safety agencies, is available...
6 KB (654 words) - 15:14, 1 June 2025
unless an assigned tone was received. Ground mobile radios used a similar system called CTCSS (Continuous Tone-Coded Squelch System); this continues to...
5 KB (575 words) - 07:08, 20 November 2024
decode Continuous Tone-Coded Squelch System tones, which allows the repeater to activate only if the station is sending a particular pre-programmed code, preventing...
11 KB (1,602 words) - 20:24, 23 September 2024
Selective calling (redirect from Tone burst)
the channel is in use. CTCSS (Continuous Tone-Coded Squelch System) superimposes any one of about 50 continuous audio tones on the transmitted signal, ranging...
26 KB (4,028 words) - 09:22, 3 February 2025
telephone network or cellular network. 70-centimeter band CDCSS Continuous Tone-Coded Squelch System (CTCSS) Family Radio Service (the equivalent of PRS in Canada...
3 KB (253 words) - 12:16, 7 May 2025
and by opening the squelch. The popularity of selcall has dropped since the introduction of CTCSS. Continuous tone coded squelch system (CTCSS) allows a...
20 KB (1,782 words) - 09:14, 4 April 2025
the buzz tones lasted approximately 0.8 seconds each. One minute before the hour, the repeating tone was previously replaced by a continuous, uninterrupted...
30 KB (2,822 words) - 00:51, 19 June 2025
GE Marc V (category Trunked radio systems)
in order to eliminate squelch tail. There were two possible continuous tones: all radios on a single system used the same tone. These were used to distinguish...
12 KB (2,009 words) - 02:39, 8 July 2024
Radiotelephone (category Wireless communication systems)
devised to create addressing systems. The crudest and oldest of these is called CTCSS, or Continuous Tone-Controlled Squelch System. This consists of superimposing...
13 KB (1,636 words) - 12:15, 25 May 2025
Spread spectrum – Spurious emission – Squelch – Standard telegraph level – Standard test signal – Standard test tone – Standing wave ratio – Standing wave...
34 KB (2,802 words) - 02:36, 17 December 2024
Radio jamming (redirect from Communications System Jamming)
operator. These are often technical attacks on modern equipment, such as "squelch capture". Thanks to the FM capture effect, frequency modulated broadcasts...
35 KB (3,899 words) - 22:42, 23 May 2025
come up to full power output, tone squelch decoding equipment requires time to open receivers and receiver voting systems take time to select the best...
76 KB (7,599 words) - 07:54, 31 March 2025
scanner will stop on an active frequency strong enough to break the radio's squelch setting and resume scanning other frequencies when that activity ceases...
27 KB (3,293 words) - 13:42, 26 March 2025
Ion Bogdan – via Google Books. "T.81 – DIGITAL COMPRESSION AND CODING OF CONTINUOUS-TONE STILL IMAGES – REQUIREMENTS AND GUIDELINES" (PDF). CCITT. September...
564 KB (52,402 words) - 15:18, 21 June 2025
Romanian and foreign scholars and researchers of employing dubious methods to squelch criticism of him and his works. In May 2012, the well-respected scholar...
143 KB (16,905 words) - 17:20, 7 June 2025
2008). Steve Rendall & Tara Broughel (2003). "Amplifying Officials, Squelching Dissent". Extra!. Whiten, Jon (February 2004). "If News From Iraq Is Bad...
156 KB (18,985 words) - 19:35, 25 May 2025