The Red-belly snake (Storeria occipitomaculata) is a relatively small snake that rarely exceeds 12 inches in length. It is native to North America, Mexico and Central America, and it is NOT venomous.
The electromagnetic frequency of a wave is defined as how many times the peak of this oscillation moves past a point each second. This has a major effect on the properties of the wave, including its energy.
The High Frequency (HF) Band The HF band is defined as the frequency range of 3 to 30 MHz. In practice,most HF radios use the spectrum from 1.6 to 30 MHz. Most long-haulcommunications in this band take place between 4 and 18 MHz.