Military Aeronautical (Exclusive use of Canadian government), 328.600-335.400 (earth-to-space), 614.000-806.000 website at http://neon.polkaroo.net/~darkwing/tafl/start.html. This is a particular problem for receivers located in depressions and valleys. Power limits are also lower on low-VHF; a digital UHF station may be licensed to transmit up to a megawatt of effective radiated power.
Compared with an equivalent VHF television transmitter, to … Focus on Test from Rohde & Schwarz offers a huge number of informative PDFs, white-papers, webinars videos and general information on many test topics. will search the Industry Canada Technical and Administrative Frequency Lists (TAFL) It is intended that there will be multiple users of these frequencies within interference range but the nature of the frequency use would allow sharing of the channel. Translators and repeaters also exist on VHF channels, but infrequently and with stringently limited power. spacing), 149.900-150.005 Such transmitters are called "translators" rather than "stations".
Certain frequencies within each band have been designated for use by wireless microphones as well as by other services. The use of UHF to provide programming that otherwise would not be available, such as province-wide educational services (BC's Knowledge: channel, or TVOntario - the first UHF originating station in Canada), Télé-Québec, French language programming outside Québec and ethnic/multilingual television services), has therefore become common. The same interference can prove severe enough to prevent the reliable reception of the more fragile and more highly compressed ATSC digital television.  While the more-established broadcasters were operating profitably on VHF channels as affiliates of the two largest TV networks (at the time, NBC and CBS), most of the original UHF local stations of the 1950s soon went bankrupt, limited by the range their signals could travel, the lack of UHF tuners in most TV sets and the paucity of advertisers willing to spend money on them. The same effect also makes UHF signals more difficult to receive around obstructions. Use of ultra high frequency radio to transmit television signals, Parts of this article (those related to The last paragraph says we don't know what'll happen after 2012, can this be updated with what DID happen?) Canada Post Corporation, 418.0375 FM radio broadcasting had already suffered a huge setback after a forced move from a 42–50 MHz allocation to an 88–108 MHz allocation in 1946. feature a spectrum chart of VHF/UHF assignments used in Canada. At current count, there are 6 distinct UHF signals receivable by an analog TV set in the Klang Valley: Channel 27 (8TV), Channel 29 (TV3 UHF transmission), Channel 37 (NTV7), Channel 42 (TV9), Channel 55 (TV Alhijrah) and Channel 39 (WBC).