Originally Posted by Goes to 11
zyland, I'm liking this idea. But I'm not understanding why 14.13 would be filtered out, but 2.1, 6.1, etc. would not be.
2.1, 2.2, 6.1, 8.1, etc are virtual channels.
14.13 is the actual physical channel that KOPB HD transmitted on Comcast cable.
If you consult the "pdx cable.pdf" that I just sent out on this forum, you will see all of the virtual channels listed on the far left under the heading "PSIP".
The physical channels are under the heading "QAM".
KOPB HD's physical channel is 14.13 and it's virtual channel is 10.1
KATU HD's physical channel is 91.2 and it's virtual channel is 2.1
So, the UHF input of the VHF/UHF combiner is going to filter out all channel in the PHYSICAL range; 2 through 13 AND 14 through 22 and 95 through 99. Unfortunately KOPB HD is in the 14-22 range. So it gets filtered out. KATU HD (physical channel 91.2) is not in this range, so it gets through. The same is true of the rest of the local HD channels.
SD channels like OPBPlus, TV Guide Network, QVC, etc. will also get filtered out but you can pick those up on your DTA so you probably don't care.
In any event, I have a better solution. A Channel Master JoinTenna for channel 3 (or 4) would cost about $20 and would not have the drawback
of filtering out KOPB HD. It works like the VHF/UHF combiner except it joins all channels except 3 (or 4) on one input and channnel 3 (or 4) on the other input. So, like the previous scheme but replace the VHF/UHF combiner with a channel 3 (or 4) JoinTenna.
Let me know how it goes.