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A radio repeater is a combination of a radio receiver and a radio transmitter that receives a signal and retransmits it, so that two-way radio signals can cover longer distances. A repeater sited at a high elevation can allow two mobile stations, otherwise out of line-of-sight propagation range of each other, to communicate. [1]
An SSTV repeater is an amateur radio repeater station that relays slow-scan television signals. A typical SSTV repeater is equipped with a HF or VHF transceiver and a computer with a sound card, which serves as a demodulator/modulator of SSTV signals. SSTV repeaters are used by amateur radio operators for exchanging pictures.
Amateur licensing is a routine civil administrative matter in many countries. Amateurs therein must pass an examination to demonstrate technical knowledge, operating competence, and awareness of legal and regulatory requirements, in order to avoid interfering with other amateurs and other radio services. [36]
Founded in 2007, the Graduate School of Public and International Affairs is one of two bilingual schools of public and international affairs in Canada, where courses are taught in Canada's two official languages, French and English.
Although no formal engineering program existed at the Maryland Agricultural College, the early curriculum included surveying, construction, mechanics, and electricity courses. [3] During the early years of the University, much of the coursework centered around preparing students for a career in agriculture.
Department of Defense Instruction 4650.02, dated 23 December 2009 changed the status of MARS from an affiliate to an auxiliary (equal in status to the Coast Guard Auxiliary and Civil Air Patrol). This change in status saved the Navy-Marine Corps MARS program from being shut down [ citation needed ] and put it back in line with the Emergency ...
The University of Ottawa (French: Université d'Ottawa), often referred to as uOttawa or U of O, is a bilingual public research university in Ottawa, Ontario, Canada. The main campus is located on 42.5 hectares (105 acres) directly to the northeast of Downtown Ottawa across the Rideau Canal in the Sandy Hill neighbourhood .
Some repeaters also correct for distortion of the optical signal by converting it to an electrical signal, processing that electrical signal and then retransmitting an optical signal. Such repeaters are known as optical-electrical-optical (OEO) due to the conversion of the signal. These repeaters are also called regenerators for the same reason.