Property talk:P2144

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frequency
frequency in Hz at which the subject works, for example the frequency a radio station can be received

Represents	frequency (Q11652)
Data type	Quantity
Domain	radio station (Q14350) (note: this should be moved to the property statements)
Allowed units	hertz (Q39369), kilohertz (Q2143992), megahertz (Q732707), gigahertz (Q3276763) or revolutions per minute (Q206037)
Example	WJMH (Q7951287) → 102.1 megahertz 2GB (Q222029) → 873 kilohertz 40 Hertz (Q122816967) → 40 hertz
Formatter URL	https://onlinetonegenerator.com?freq=$1
Tracking: usage	Category:Pages using Wikidata property P2144 (Q75175866)
See also	duration (P2047), voltage (P2436)
Lists	Items with the most statements of this property Count of items by number of statements (chart) Items with the most statements Items with the fewest statements Count of items by number of sitelinks (chart) Items with the most sitelinks Items with the most sitelinks, but no link to one Wikipedia (sample: Welsh Wikipedia, cywiki) Items with the fewest sitelinks Most linked wikis Items with the most identifier properties Items with no other statements Most recently created items Items with novalue claims Items with unknown value claims Usage history (total) Usage history (main statement) Chart by item creation date Minimum and maximum Items with highest numeric value Items with lowest numeric value User:Laboramus/Units/P2144 (Units used) Database reports/Constraint violations/P2144 Map Random list
Proposal discussion	Proposal discussion
Current uses	Total 6,638 Main statement 5,067 76.3% of uses Qualifier 1,571 23.7% of uses

[create Create a translatable help page (preferably in English) for this property to be included here]

Units: “hertz (Q39369), kilohertz (Q2143992), megahertz (Q732707), gigahertz (Q3276763), revolutions per minute (Q206037)”: value unit must be one of listed. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P2144#Units

Scope is as main value (Q54828448), as qualifier (Q54828449): the property must be used by specified way only (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P2144#Scope, SPARQL

Allowed entity types are Wikibase item (Q29934200): the property may only be used on a certain entity type (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P2144#Entity types

Conflicts with “clock frequency (P2149)”: this property must not be used with the listed properties and values. (Help)

Exceptions are possible as rare values may exist. Exceptions can be specified using exception to constraint (P2303).
List of violations of this constraint: Database reports/Constraint violations/P2144#Conflicts with P2149, SPARQL

This property is being used by: my:Template:Infobox astronomical survey ca:Plantilla:Infotaula color, ca:Plantilla:Infotaula eina commons:Template:Wikidata Infobox/core es:Plantilla:Wikidata Infobox id:Templat:Wikidata infobox, id:Templat:Kotak info Wikidata/inti mw:Template:Wikidata Infobox/core mr:साचा:विकिडाटा माहितीचौकट/core, mr:साचा:विकिडेटा माहितीचौकट/core sa:फलकम्:Wikidata Infobox ur:سانچہ:خانہ معلومات ویکی ڈیٹا/کور, ur:سانچہ:Wikidata Infobox/core q:fr:Modèle:Wikidata Infobox/core de:Vorlage:Wikidata Infobox/core gu:ઢાંચો:Wikidata Infobox/core ta:வார்ப்புரு:Wikidata Infobox/core hi:साँचा:Wikidata Infobox/core el:Πρότυπο:Πληροφορίες ραδιοφωνικού σταθμού sv:Mall:Wikidata Infobox/core s:zh:Template:Wikidata Infobox/core ckb:داڕێژە:Wikidata Infobox/core be-x-old:Шаблён:Мабільны тэлефон pt:Predefinição:Wikidata Infobox/core pa:ਫਰਮਾ:ਜਾਣਕਾਰੀਡੱਬਾ ਖਗੋਲਸ਼ਾਸਤਰੀ ਸਰਵੇਖਣ ku:Şablon:Wikidata Infobox/core mnw:ထာမ်ပလိက်:Wikidata Infobox/core d:Template:Wikidata Infobox/core no:Mal:Wikidata Infobox/core s:ban:Mal:Wikidata Infobox/core ban:Mal:Wikidata Infobox/core lv:Veidne:Wikidata Infobox/core ga:Teimpléad:WD Bosca Sonraí Dath voy:shn:ထႅမ်းပလဵတ်ႉ:Wikidata Infobox s:hi:साँचा:Wikidata Infobox/core be-tarask:Шаблён:Мабільны тэлефон Please notify projects that use this property before big changes (renaming, deletion, merge with another property, etc.)