A city, other than its legally authorized city of license, with which a station may regularly ID.

A statistical technique that assigns diary credit based on the eligible stations' historical (previous available survey year) diary mentions in the county from which the diary was received. The diary mentions are transformed into probability ranges for the purpose of assigning credit. A random number is generated, and, within whichever station's range the number falls, that station receives credit.

The estimated average number of persons listening to a station during a particular daypart. For stations not on the air 24 hours/day, AQH Persons refers to the time the station was on the air during the particular daypart. This estimate, expressed in hundreds (00), is shown for the Metro, TSA and DMA in applicable Nielsen Radio Market Reports.

The Average Quarter-Hour Persons estimate expressed as a percentage of the appropriate estimated population. This estimate is shown for the Metro and DMA in applicable Nielsen Radio Market Reports.

The Average Quarter-Hour Persons estimate for a given station expressed as a percentage of the Metro Total Average Quarter-Hour Persons estimate within a reported daypart. This estimate is shown only for the Metro in Nielsen Radio Market Reports.

Describes how a station's estimates are printed in a Radio Market Report. A station may be listed "below-the-line" if it has engaged in activities determined by Nielsen Audio to have Rating Bias or Rating Distortion potential. Below-the-line may also refer to a station being listed as an "outside" station (rather than a "home" station).

One of two types of Nielsen Radio Market Reports. Condensed Reports have smaller sample objectives for the Metro and TSA, and contain fewer dayparts and demographics, than Standard Radio Market Reports.

Refers to a grouping of closely related Primary Metropolitan Statistical Areas, as defined by the U.S. government's Office of Management and Budget.

The percentage of estimated Cume Persons for one station that also listened to another station. This estimate is shown only for the Metro in Nielsen Radio Market Reports.

The estimated number of different persons listening to a station during a particular daypart (Cume estimates may also be referred to as "cumulative" or "unduplicated" estimates.) This estimate, expressed in hundreds (00), is shown for the Metro, TSA and DMA in applicable Nielsen Radio Market Reports.

The Cume Persons estimate expressed as a percentage of the appropriate estimated population. This estimate is shown only for the Metro in Nielsen Radio Market Reports.

A time period for which audience estimates may be reported (e.g., Monday-Sunday 6AM-Midnight, Monday-Friday 6AM-1OAM, Monday-Friday 6AM-7AM).

Classifications of populations according to sex, age, race, ethnicity, income, etc.

Nielsen's geographic market design which defines each television market exclusive of others based on measurable viewing patterns. Every county or split county in the United States is assigned exclusively to one DMA. [More]

Telephone numbers selected from the sample frame for a particular survey and determined by Nielsen Audio to be usable.

An individual to whom survey materials were sent

The number of different in-tab diaries in which a station received credit for at least one quarter-hour of listening.

Special survey procedures used to increase participation rates of targeted demographic groups (e.g., Black, Hispanic, Males 18-~24, Males 25-34) which tend to be underrepresented in surveys.

Effective Radiated Power is used in conjunction with HAAT and the FCC's 50/50 curve to determine an FM station's reach in miles/meters.

An estimate of the size of a simple random sample which would be required to produce the same degree of reliability (amount of sampling error) as the sample for a complex survey such as Nielsen Audio's.

An organization that accredits electronic media ratings services. The EMRC mandates and performs annual audits of the compliance of a service with certain minimum standards.

Audience estimates for Total, Black and Hispanic Persons, expressed as Persons, Ratings and Black and Hispanic composition percents. Ethnic Composition estimates are based on total Metro in-tab diaries and are reported for the Metro of ethnic-controlled markets only if at least 30 Black and/or 30 Hispanic diaries, as appropriate, are in-tab for the Metro.

The collective term for procedures designed to improve the representation of Black and Hispanic populations in Nielsen Audio surveys. These procedures include Black and Hispanic Differential Survey Treatments, Black and Hispanic weighting of the in-tab sample, High Density Black and Hispanic Areas, and bilingual (Spanish/English) survey materials for Hispanics.

The estimated number of Cume Persons who listened to only one station within a reported daypart. This estimate is shown only for the Metro in Nielsen Radio Market Reports.

An automated edit procedure that recredits illegal call letters to a set of legal call letters based on a series of sequential logical steps.

A contact made to consenting households after the initial placement contact. The purpose may be to remind respondents to complete and return their diaries, answer any questions about filling out diaries or thank respondents for cooperating with the survey.

An AM or FM band designation assigned to a city service area and a licensee by the FCC or other regulatory authority.

For Nielsen Audio sampling purposes, group quarters refers to living arrangements such as college dormitories, military barracks, nursing homes and prisons, plus dwelling units of 10 or more individuals. However, residents of college dorms, military housing, etc. are considered eligible to participate in the survey if the telephone number is assigned to a private telephone serving fewer than 10 individuals.

Antenna Height Above Average Terrain is used in conjunction with ERP and the FCC's 50/50 curve to determine an FM station's reach in miles/ meters.

A zip code-defined area which may be established in a county or split county within the Metro of an ethnic-controlled market.

Generally, any station licensed to a city located within a particular Nielsen radio Metro (or DMA). A station that is not licensed to a city within a Nielsen radio Metro may nevertheless be granted "home" status if it meets certain criteria.

The number of usable diaries tabulated in producing a Radio Market Report.

Sample telephone numbers for which names and mailable addresses are known prior to diary placement calling.

Locations for which audience estimates are reported (At Home, In Car, At Work, Other).

The ratio of the number of Metro in-tab diaries to the Metro sample target, generally expressed as a whole number.

The primary reporting area for local radio. Metro Survey Area definitions generally correspond to the federal government's Metropolitan Areas, subject to exceptions dictated by historical industry usage and other marketing considerations as determined by Nielsen Audio. [More]

Total reported listening to radio in the Metro or DMA (could refer to AQH or Cume estimates). Includes listening to reported stations, non-qualifying commercial stations, noncommercial stations, cable-only stations and unidentified stations.