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Old 03-14-2012, 03:37 PM
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jr_tech jr_tech is offline
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Quote:
Originally Posted by Jeffhs View Post
Why WOIO transmits on DTV channel ten is beyond me, since most TV stations now operate on UHF digital TV channels and there is already a Canadian station (CFPL in London, Ontario) on the same VHF channel; the possibilities for co-channel interference would seem to be too great.
One word here... MONEY! In general, It is cheaper to operate a lower power VHF station than a UHF station that must operate at higher power levels to obtain the same coverage. It was also likely cheaper to leave the digital on channel 10 after the transition date than to "flash cut" the digital back to the original analog channel (19) as I suspect that the channel 10 digital transmitter was a new purchase, while the channel 19 may have been a very old unit, not suited to digital transmission... but this is only a guess.

The problem... The Calculation of the coverage area appears to overstate the coverage of the VHF channels when compared to the UHF channels. This calculation was based on assumptions/projections (mostly about receiver capability) that were made 20 years ago when the standards were set. Some projections were not realized.

jr

Last edited by jr_tech; 03-14-2012 at 03:48 PM. Reason: add info
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