Amateur radio frequency allocationsUploader: Kagabar 7 month ago Subscribe 4116
These are commonly called the " WARC bands ". Satellite relay is not really a propagation mode, but rather an active repeater system. The moon's surface is also very rocky and irregular. RAC has a chart amateur antennas by band the frequencies available to amateurs in Canada. Some amateurs on VHF seek to take advantage of "band openings" where natural occurrences in the atmosphere and ionosphere extend radio transmission distances well over their normal range. Amateur television ATV is the hobby of transmitting broadcast - compatible video and audio by amateur radio. International amateur radio frequency allocations. The Report and Order also allows amateur antennas by band use of modes that comply with emission designator 2K80J2D, which includes any digital mode with a bandwidth of 2. During the s commercial "scatter site" operators using huge parabolic antennas and high power used this mode successfully for telephone communications services into remote Alaska and Canadian northern communities. See also slow-scan television.