You might need to adjust the VHF frequency for long-range communication. Simply turn the VHF button on your radio and set the frequency anywhere between 130 and 174 MHz . Adjusting the frequency automatically adjusts the wavelength. In addition, the UHF also gets automatically balanced.
Read moreWhat radio signals travel the longest distance?
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). They also have the lowest frequencies, from about 3,000 cycles per second, or 3 kilohertz, up to about 300 billion hertz, or 300 gigahertz.
Read moreWhich wave is better for long distance communication?
Sky waves are radio waves reflected by the ionosphere. Therefore, the propagation of these waves is not limited by the curvature of earth. So, these can be used for beyond the horizon communication. Thus, sky waves are used for communication over long (inter-continental) distances.
Read moreWhat is the best frequency to use for communication?
There are two types of frequencies: VHF and UHF. VHF is the most suitable for businesses that must communicate across long distances . UHFprovides high yet short wavelengths, best for communicating within smaller spaces and metallic buildings.
Read moreWhat is the best frequency for long distance?
The 7000 kHz (7 MHz or 40 metre) band is useful for daytime communication up to a distance of 800 km via E and F layers. Long distance world-wide communication takes place in this band through F2 layer.
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