EV>According to the website TVFOOL.COM the Over The Air Digital TV Channel   
   EV>21.1 is a Virtual frequency, and is Transmitted on the Real Channel 8 .   
      
   EV>I was thinking Channel 21 was UHF until I read that the other day.   
      
   EV>Channel 8 is VHF as far as my thinking processes goes from what I read   
   EV>about TV Channels in books that I have here.   
      
   EV>Channel 8 is between 180-186 Megacycles,   
   EV>Channel 21 is (was?) between 512-518 Megacycles,   
   EV>according to a book printed in 1959.   
      
   EV>That seem to me to mean I would need a VHF TV Antenna instead of UHF.   
      
   EV>Is that how You think also?   
      
   The Main Station frequency sub channels are Multiplexed on the main   
   carrier. They do also typically use the main channel number followed by   
   .1, .2 etc. In the case you are talking about I suspect they could be   
   Retransmitting the UHF Channel 21 along with their main channel.   
      
   The standard digital TV channel bandwidth is capable of containing   
   more then one video channel. the number being based on the Resolution   
   of the channels. As an example if the main carrier is a 16:9 720P signal   
   there can be Five 4:3 480i channels also transmitted.   
      
   ---   
    þ SLMR 2.1a þ 0     
    * Origin: Check Out Doc's QWK Mail  Via Web BBS > DocsPlace.org  (1:123/140)