You also need to do your tvfool for post-transition. Your ABC station WTVD-DT will move to VHF-hi CH11.
It's not a problem to mount your 2 UHF antennas back-to-back. The problem is how you combine them. If you use a splitter/combiner the two antennas will each pick up some of the same signals which will cancel when combined. If you don't want to rotate your antenna, you will have to use an A/B switch to select which antenna you want. If you only had one channel in the other direction there are filters to combine them all into one downlead.
A satellite meter or multimeter is not going to work. I use an old Sadelco analog signal level meter which is battery operated but quite heavy. It is not designed for digital signals but it's OK for comparative readings. The newer handheld meters for digital signals are lighter but more expensive.
What I have been doing is do the rough aiming with the Sadelco meter and then do the final "tweaking" with the signal quality bar of an APEX DT502 CECB. The signal quality bar is a more sensitive indicator for aiming because it indicates the level of bits errors (BER) that are caused by multipath problems. You could use the APEX box for both signal strength and signal quality because it has 2 bars. I have recently done some experiments using the DT502 for this type of problem:
http://www.avsforum.com/avs-vb/showt...6#post15414426
http://www.avsforum.com/avs-vb/showt...6#post15414586
http://www.avsforum.com/avs-vb/showt...6#post15431676 post #124
There is one shortcoming of the APEX box: you can't do a manual add of a channel after the scan. You will have to do a separate scan for the other direction.
It's not a problem to mount your 2 UHF antennas back-to-back. The problem is how you combine them. If you use a splitter/combiner the two antennas will each pick up some of the same signals which will cancel when combined. If you don't want to rotate your antenna, you will have to use an A/B switch to select which antenna you want. If you only had one channel in the other direction there are filters to combine them all into one downlead.
A satellite meter or multimeter is not going to work. I use an old Sadelco analog signal level meter which is battery operated but quite heavy. It is not designed for digital signals but it's OK for comparative readings. The newer handheld meters for digital signals are lighter but more expensive.
What I have been doing is do the rough aiming with the Sadelco meter and then do the final "tweaking" with the signal quality bar of an APEX DT502 CECB. The signal quality bar is a more sensitive indicator for aiming because it indicates the level of bits errors (BER) that are caused by multipath problems. You could use the APEX box for both signal strength and signal quality because it has 2 bars. I have recently done some experiments using the DT502 for this type of problem:
http://www.avsforum.com/avs-vb/showt...6#post15414426
http://www.avsforum.com/avs-vb/showt...6#post15414586
http://www.avsforum.com/avs-vb/showt...6#post15431676 post #124
There is one shortcoming of the APEX box: you can't do a manual add of a channel after the scan. You will have to do a separate scan for the other direction.