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Selective calling

In a conventional, analog two-way radio system, a standard radio has noise squelch or carrier squelch, which allows a radio to receive all transmissions. Selective calling is used to address a subset of all two-way radios on a single radio frequency channel. Where more than one user is on the same channel (co-channel users), selective calling can address…

Standards, Group calling & Conventional analog individual calling

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Explore the main themes, entities and connections around Selective calling. Start with the topic map, then use the sections below for research and deeper semantic analysis.

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Group calling

CTCSSFederal Communications CommissionLEDTonesHz
18 related topics

Conventional analog individual calling

Dual-tone multi-frequencyDispatching computerTime windowEmergency!Base station
8 related topics

Other in-band signaling

SelcallVoting comparators
2 related topics

Out-of-band individual calling

Trunked systemTDMA
2 related topics

Topics to explore

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Overview

Group calling

Conventional analog individual calling

Other in-band signaling

Out-of-band individual calling

Advanced semantic analysis

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Map overview Semantic statistics

Selective calling

Nodes41
Edges40
Triples94
Avg. degree1.95
Density0.04878
Components1

How this topic connects Entity context

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Selective calling

Top relations

related to Two-tone sequential · 15
Selective calling → Another, CTCSS, Decoders, For, General Electric Mobile Radio, Hz, If, Individual, Many, Motorola, Quik-Call II, Some, Systems, Two-tone, Type
related to SelCall · 14
Selective calling → All, At, CCIR, CTCSS, European, Great Britain, If, In, On, Selcall, Sometimes, The, This, ZVEI
related to DTMF · 13
Selective calling → Digits, Distorted, DTMF, For, In, Keeping, On FM, RS-232, Sending, Some, Systems, The, These
related to Quik-Call I · 13
Selective calling → Decoders, Department, Emergency, For, If, In, In Motorola, It, Los Angeles County Fire, Motorola, Quik-Call, The, The Quik-Call
related to Group calling · 12
Selective calling → CTCSS, FM, Government, In, Motorola, One, Only, PL, Private Line, Radios, Receivers, The
related to Modat · 10
Selective calling → Each, For, ID, In, Modat, Motorola, Selcall, Some, The, To
related to Tone burst or single tone · 8
Selective calling → At, CTCSS, Human, In, The, This, Tone, United States
related to Out-of-band individual calling · 6
Selective calling → Each, ID, See, TDMA, Trunked, Two-way

Important terminology Word statistics

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

tone radio calling systems tones selective system radios use ctcss used may channel motorola hz dtmf single valid squelch individual

Entity relationships Subject–Predicate–Object triples

SubjectPredicateObjectConfidenceSrc
receiver-produced intermodulationinstance ofselective calling can also hide the presence of interfering signals0.80text
TDMA can embed unit IDinstance ofSee the article for a specific system to learn more.Two-way radio systems using digital modulation schemes0.80text
selective calling into the data stream multiplexed in parallel with the voiceinstance ofSee the article for a specific system to learn more.Two-way radio systems using digital modulation schemes0.80text
Selective callingrelated to DTMFIn0.60section
Selective callingrelated to DTMFDTMF0.60section
Selective callingrelated to DTMFSystems0.60section
Selective callingrelated to DTMFThese0.60section
Selective callingrelated to DTMFRS-2320.60section
Selective callingrelated to DTMFOn FM0.60section
Selective callingrelated to DTMFFor0.60section
Selective callingrelated to DTMFKeeping0.60section
Selective callingrelated to DTMFSending0.60section

Related concept clusters Concept neighborhoods

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    Connections between topic areas Semantic bridges

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    Min side: 3
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