Dan Romanchick has been doing the “No Nonsense” amateur radio license study guides for nearly 20 years. He is concidering making all three guides part of an open source project, and he is looking for people with experience open source projects to assist him.
Many radio manufacturers claim misleading range distances based on a hypothetical antenna called isotropic antenna. An Isotropic antenna is a hypothetical antenna radiating the same intensity of radio waves in all directions. It thus is said to have a directivity of 0 dBi (dB relative to isotropic) in all directions. However, the range you get from an radio varies based on a lot of factors such as the frequency in use, Atmospheric conditions, Your locations, Radio Power, etc. Modernsurvivalonline.com has a great article regarding ham radio ranges.
