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.
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