Information AboutChannel 1 |
| CATEGORIES ABOUT CHANNEL 1 | |
| american television | |
| fictional telecom protocols | |
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In North America , channel 1 is a former Broadcast ( Over-the-air ) Television Channel (44-50 MHz, with visual at 45.250 and aural at 49.75). HISTORY When the U.S. Federal Communications Commission initially Allocated broadcast television frequencies (after the first post-WWII telecommunications conferences formally allocated TV frequencies in 1945-1946), channel 1 was logically the first channel. In 1945 , the FCC decided to reserve channel 1 for low-power Community Television stations, and moved existing channel 1 stations to higher frequencies. Channel 1 locations, which were all community stations, include:
A shared (non-primary) allocation From 1945 to 1948 TV stations in the US shared Channel 1 with fixed and mobile services.
The FCC in 1948 formally changed the rules on TV band allocations based on propagation knowledge gained during the era of shared-user allocations. The 44~50MHz Band used by Channel 1 was replaced by lower-power narrowband users. Channel 1 was reassigned to:
Rather than Renumber the TV channel table, it was decided to merely remove Channel 1 from the table. Historical users These US TV stations originally broadcast on channel 1
Canada did not start experimental broadcast television broadcasts until after the US had decommissioned Channel 1 for television use. This TV channel was never used in Latin America as TV broadcasting did not start in the region until the mid-1950s. TABLE OF US FCC ALLOCATION OF VHF BAND
CABLE TV ALLOCATION ISSUES ''Legacy issues with System M cable TV''
System M cable TV in North America uses frequencies between
for additional standard 6 MHz channels. Interference issues
PREVIOUS USERS OF THESE FREQUENCIES TV was not the first to use the Channel 1 frequency region. Originally, it was part of the FM Broadcast Band , until it was later moved in the RCA Scandal . Channel 1 is also not the only "missing" channel. No stations are assigned to UHF Channel 37 (608 to 614 MHz), which is reserved for Radio Astronomy . It remains on TV sets and tuners. Other channels have been removed and reassigned as well, but only from the higher UHF bands. Channels 14 to 83 (sans 37), from 470 to 890 MHz, were originally added for the rapidly-expanding ( 1950s , 1960s ) TV service. In the 1980s , channels 70 to 83 (806 to 890 MHz) were removed for AMPS Mobile Phone services (leading to one side of some Conversation s being heard on older TV sets on those channels). In Canada, Channels 63 and 68 are no longer in use. CURRENT USES In the 1990s , it was decided that Digital Television would be limited to the channels between 2 and 51, so that another 18 channels (from 698 to 806 MHz) could be Auction ed and given to DAB Radio or Emergency Service s such as police radios. Renumbering in this case is not relevant, as Virtual Channel s maintain the original TV Station Brand number, despite actually Transmitting on Another Channel . Digital Cable subscribers in many areas, such as those serviced by Comcast , can find Video On Demand content at Channel 1. Cable subscribers in the New York area receive the channel NY1 on channel one, served by Time Warner Cable and Cablevision . In Europe , other recently abandoned TV channels are being used for DAB Digital Radio , in VHF Band III . Japan ese Public Broadcaster NHK General TV broadcasts on Channel 1 in Tokyo and other cities. CHANNEL 1 IN US POPULAR CULTURE
EXTERNAL REFERENCE
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