Amateur television ATV is the transmission of broadcast quality video and audio over the wide range of frequencies of radio waves allocated for radio amateur Ham use. Ham TV stations were on the air in many cities before commercial television stations came on the air. ATV includes the study of building of such transmitters and receivers , and the study of radio propagation of signals travelling between transmitting and receiving stations. ATV is an extension of amateur radio. SSTV is a method of transmitting still images over radio, when it is not possible to send video. In North America , amateur radio bands that are suitable for a television signal wide enough to fit such a signal are higher in frequency than VHF broadcast TV. The lowest frequency ham band suitable for television transmission is 70 centimeters , which is between broadcast channels 13 and
Melbourne Amateur TV Group
VK3RTV Digital Amateur Television
An amateur radio repeater is an electronic device that receives a weak or low-level amateur radio signal and retransmits it at a higher level or higher power, so that the signal can cover longer distances without degradation. Many repeaters are located on hilltops or on tall buildings as the higher location increases their coverage area, sometimes referred to as the radio horizon , or "footprint". Amateur radio repeaters are similar in concept to those used by public safety entities police, fire department, etc. Amateur radio repeaters may even use commercially packaged repeater systems that have been adjusted to operate within amateur radio frequency bands, but more often amateur repeaters are assembled from receivers, transmitters, controllers, power supplies, antennas, and other components, from various sources. In amateur radio , repeaters are typically maintained by individual hobbyists or local groups of amateur radio operators. Many repeaters are provided openly to other amateur radio operators and typically not used as a remote base station by a single user or group. In some areas multiple repeaters are linked together to form a wide-coverage network, such as the linked system provided by the Independent Repeater Association  which covers most of western Michigan, or the Western Intertie Network System "WINsystem" that now covers a great deal of California, and is in 17 other states, including Hawaii, along with parts of four other countries, Australia, Canada, Great Britain and Japan.
GB3JV Digital Amateur TV Repeater
I'm happy to answer any ATV questions from licensed Radio Amateurs so please always include your call letters in the email. Licensed Amateur Radio operators can transmit live action color video and sound to other hams easily on the MHz and up Amateur bands. Check out all the fun applications and technical info on our web site.
Conceived in , the repeater has been operational since June 14, , and serves the North Jersey Exterior Area on an input frequency of The repeater uses a horizontally polarized antenna located feet above ground level, and shares tower facilities with radio station WBJB-FM. The Brookdale ATV Repeater System is a continuously evolving, long-term educational and research project that is supported by higher education and local industry. System upgrades and additions that have recently taken place include the following:.