I received this response to an email I wrote to Doug Finck. Hopefully, this will help explain some of the technical stuff behind UHF/VHF and high definition: Some technical information included.
There’s one thing that you said that is wrong and you will want to grasp this concept, cuz it’s important.
Your wrote that “when channel 6 reverts to using their VHF signal”…that’s never going to happen. They (and channel 13) will be abandoning their VHF signals and will (after 2/18/09) only be available as UHF signals. Channel 6 will permanently use channel 44…but they will continue to market themselves as channel 6 and, most importantly…your digital TV will display them on and label them as, channel 6. What the digital conversion is doing is uncoupling the over-the-air frequency, from the channel number on the digital TV.
Just so you don’t think this is a new issue…there are no such things as channel 6, or 8, or 13, or 51, etc. Those numbers were created when TV started as a way to make it easy for consumers to find and remember stations. Those channel numbers are really “fronts” for frequencies measured in megahertz. For instance, channel 6 is actually using the spectrum of about 82-88 megahertz (just below the FM band). WGME is using the 210-216 megahertz. Our channel 51 is using the 560-566 megahertz spectrum, etc.
No comments:
Post a Comment