Why do radio stations only end in odd numbers?

Why do radio stations only end in odd numbers?

Because each channel is 0.2 MHz wide, the center frequencies of adjacent channels differ by 0.2 MHz. Because the lowest channel is centered on 87.9 MHz, the tenths digit (in MHz) of the center frequency of any FM station in the United States is always an odd number.

What frequency range does the United States use for AM broadcasting?

The AM band in the United States covers frequencies from 540 kHz up to 1700 kHz, in 10 kHz steps (540, 550, 560 1680, 1690, 1700).

What frequencies do radio stations use?

The frequency band for FM radio is about 88 to 108 MHz. The information signal is music and voice which falls in the audio spectrum. The full audio spectrum ranges form 20 to 20,000 Hz, but FM radio limits the upper modulating frequency to 15 kHz (cf. AM radio which limits the upper frequency to 5 kHz).

What is the frequency range of a radio station?

In some countries, an FM station may be assigned a frequency with an even decimal such as 106.2 MHz. In many places, AM broadcast stations are assigned on frequencies with a 9 kHz bandwidth (531 kHz, 540 kHz, 549 kHz, etc.). There are a few AM stations in the United States assigned in this manner, in Guam, the Marianas Islands, and American Samoa.

What is the center frequency of the first FM channel?

For example, the center frequency for Channel 201 (the first FM channel) is 88.0 MHz + 0.1 MHz = 88.1 MHz. So the FM center frequencies are determined as follows:

What are the channel numbers of AM and FM stations?

AM band stations do not have assigned channel numbers, they are referenced by the frequency in kilohertz only. AM and FM station assignments in other countries may not be made according these procedures. In some countries, an FM station may be assigned a frequency with an even decimal such as 106.2 MHz.

What is the bandwidth of the center frequency of the band?

The band is divided into 100 channels, each 200 kHz (0.2 MHz) wide. The center frequency is located at 1/2 the bandwidth of the FM Channel, or 100 kHz (0.1 MHz) up from the lower end of the channel.