Table of Contents
What is the frequency and wavelength of a radio?
Radio waves are a type of electromagnetic (EM) radiation with wavelengths in the electromagnetic spectrum longer than infrared light. They have have frequencies from 300 GHz to as low as 3 kHz, and corresponding wavelengths from 1 millimeter to 100 kilometers.
What wavelengths are used for radio stations?
Radio waves have the longest wavelengths in the EM spectrum, according to NASA, ranging from about 0.04 inches (1 millimeter) to more than 62 miles (100 kilometers)….Bands of radio waves.
| Band | Frequency range | Wavelength range |
|---|---|---|
| High Frequency (HF) | 3 to 30 MHz | 10 to 100 m |
| Very High Frequency (VHF) | 30 to 300 MHz | 1 to 10 m |
Why low frequency radio wave is suitable for radio communication?
Since its wavelengths range from 10–1 km, respectively, it is also known as the kilometre band or kilometre wave. LF radio waves exhibit low signal attenuation, making them suitable for long-distance communications.
What frequency should a radio station have if its waves are to have a wavelength of 200m?
200 m is the wavelength of the radio wave. 200m wavelength tells one the radio wave travels 200m in one cycle of the 1.5 MHz signal and taking 0.667uS to make that 200m. It would have a frequency of about 1500 KHz near the top of the A band. 1.5mcps or 1.5mc, and 1,500kcps is equally correct.
Does frequency affect wavelength?
The number of complete wavelengths in a given unit of time is called frequency (f). As a wavelength increases in size, its frequency and energy (E) decrease. From these equations you may realize that as the frequency increases, the wavelength gets shorter. As the frequency decreases, the wavelength gets longer.
Why is frequency inversely proportional to wavelength?
The wavelength of any wave with a constant speed is inversely proportional to its frequency, because as something vibrates more frequently, there is less time between one vibration and the next. Each complete vibration is one wavelength, so if there is less time, it can only go a shorter distance.