How many different station call letters can be made if repetition is allowed?

If repetitions are allowed? Thanks! The call letters of a radio station must have 4 letters. The first letter must be a K or a W.

Why do radio stations have 4 letters?

All radio stations have a four – letter identification code. The letters ‘N’ and ‘A’ were given to military stations, but ‘K’ and ‘W’ were assigned out for commercial use. Radio stations east of the Mississippi River had to start their stations with ‘W’, and stations west of the Mississippi with ‘K’.

What are the call letters of a radio station?

  • In broadcasting and radio communications, a call sign (also known as a call name or call letters —and historically as a call signal—or abbreviated as a call ) is a unique designation for a transmitter station.
  • The use of call signs as unique identifiers dates to the landline railroad telegraph system.
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Can two radio stations have the same call letters?

no, stations can ‘t have the same call letters. There is one exception though: low-power stations that aren’t subject to FCC regulation.

How many different 4 letter radio station call letters can be made if repeats are allowed and the first letter must be K Group of answer choices?

Question 623665: How many different 4 letter radio station call letters can be made if the first letter must be K or W, repeats are allowed, but the call letters cannot end in an O? please explain. Since repeats are allowed but “O” is not allowed at the end, there are only 25 choices for the 4th letter.

How many different four letter radio station call letter can be formed if the first letter must be w or k?

Question 574720: How many different four – letter radio station call letters can be formed if the first letter must be W or K? We only have two choices for the first letter, while we have 26 choices for the next three. Therefore there are 2*26^3 or 35152 choices.

Why do some radio stations have 3 call letters?

THREE LETTER CALLS Radio and television station identification – expressed in a series of three or four letters of the alphabet – goes back to the days of the telegraphy when operators keyed a few characters to identify themselves when contacting or “ calling ” each other.

What is the oldest radio station?

… world’s first commercial radio station, KDKA, began broadcasting in Pittsburgh in 1920.

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What is the K in radio stations?

First, the basics. In the United States, call signs begin with the letter K, W or N. N is reserved for military and government use, so we are left with K, generally for stations West of the Mississippi River and W for those East.

Which travels farther AM or FM?

In AM broadcasts, sound signals are encoded by changing the amplitude, or maximum height, of radio waves. AM broadcasts use longer wavelength radio waves than FM broadcasts. Because of their longer wavelengths, AM waves reflect off a layer of the upper atmosphere called the ionosphere.

Can you choose your call sign?

You can obtain a vanity call sign using either the Universal Licensing System or FCC Form 605, Main Form and Schedule D. There are up to three different request types for requesting vanity call signs, depending on whether the call sign is to apply to a primary or a club station.

What does WNYC stand for?


Call sign meaning W New York City
Technical information
Licensing authority FCC
Facility ID 73355


How do radio stations get their call signs?

Following a practice inaugurated in 1912 when the federal government first licensed radio stations, beginning in 1921 broadcasting stations have generally been assigned call signs beginning with “K” when their community of license is located in the west, and with “W” in the east.

Why do call signs start with W?

The U.S. government began requiring stations to use three-letter call signs around 1912, but they could be chosen at random. All broadcast call signs in the United States begin with either K or W, with “K” usually west of the Mississippi River and ” W ” usually east of it.

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How often do radio stations have to identify?

However, stations licensed as translators must be identified in their own right only three times per day: once between 7 and 9 a.m., 12:55 and 1:05 p.m., and 4 and 6 p.m. FCC rules specify that additional communities a station serves may also be listed in a legal ID, but the official city of license must always be

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