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<blockquote data-quote="dman_lfc" data-source="post: 197876" data-attributes="member: 10331">ATSC OTA requires a &quot;Physical Channel&quot; put method into the ATSC Network Provider for the tunigng of the channel.You cannot rely on the &quot;Major Chanel&quot; alone.Currently there is no &quot;Physical Channel&quot; DB entry as we use ChannelNumber reference to store this information becuase it was free and made sense.Unfortuntely ATSC providers don't abide by the standards. It's especially worse with QAM as providers sometime don't broadcast scrambled flags, channel names &amp; even a SID or PMT.It's my understanding some ATSC OTA providers derive it's channel number scheme from the Major Channel &amp; Minor Channel number like so...Major Channel = 30 Minor Channel = 1 thus the Channel is on 301Unfortunately not all providers keep to a standard allowing them to easily change frequencies of the broadcasted channel without affecting the user.DMAN</blockquote>

[QUOTE="dman_lfc, post: 197876, member: 10331"] ATSC OTA requires a "Physical Channel" put method into the ATSC Network Provider for the tunigng of the channel. You cannot rely on the "Major Chanel" alone. Currently there is no "Physical Channel" DB entry as we use ChannelNumber reference to store this information becuase it was free and made sense. Unfortuntely ATSC providers don't abide by the standards. It's especially worse with QAM as providers sometime don't broadcast scrambled flags, channel names & even a SID or PMT. It's my understanding some ATSC OTA providers derive it's channel number scheme from the Major Channel & Minor Channel number like so... Major Channel = 30 Minor Channel = 1 thus the Channel is on 301 Unfortunately not all providers keep to a standard allowing them to easily change frequencies of the broadcasted channel without affecting the user. DMAN [/QUOTE]

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