All public logs

Combined display of all available logs of OpenHam Wiki. You can narrow down the view by selecting a log type, the username (case-sensitive), or the affected page (also case-sensitive).

• 18:29, 16 November 2023 Vbfcc talk contribs created page Doppler shift (Created page with "The phenomenon in which the wavelength of a wave is compressed ("blue shifted") to an observer approaching the wave's source, and extended ("red shifted") to one retreating from the wave's source (the perceived frequency thus being raised or lowered respectively). In radiocommuncations it becomes significant with high-velocity sources such as satellites and other spacecraft. A relative speed difference of 100 km/h (about 62 mph) will cause a perceived difference of about...")