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More DTV Mystery

landtuna

landtuna

Got another weird one.....

Relocated my big VHF/UHF outside antenna over the weekend to place it higher up on the roof (2 story house) and it seemed to improve the signal strength of every local station....in the morning. As soon as the sun climbs directly overhead (or as overhead as it gets during this time of the year) RF27 disappears almost totally. I still get a signal but it is not strong enough to display even a broken picture. All other stations are seemingly unaffected.

Now, while all this is taking place up on the roof my inside loop/ears still work fine. This antenna connects to my PC and is located on the first floor, behind a wall (stucco over wood frame with vapor barrier) and shoots through a large pine tree towards the towers. It does not seem to be affected by the sun's location.

It will be interesting to see what happens when the sun goes down tonight.

I wish I'd paid more attention in Antenna 101. ???
 
Antenna 101 would not help in this case--it's global warming. Al Gore didn't invent global warming until recently and would not have been available for study when you took Antenna 101. ;)

To fix the problem, you need to rent "Inconvenient Lie" or whatever his global warming movie is called and then buy some carbon off-sets. Next, you need to make sure you run your HD TV only half as much as normal so as to diminish the energy usage from your energy-sucking TV. You should probably also feel a certain sense of shame for not waiting to buy an HD TV with California energy standards. It might also help to paint your television green just so it looks more energy efficient and watch re-runs of NBC's green week on your newly green TV set. ;D
 
The mystery deepens.....

Today (Saturday) I was watching 3TV around noon and the picture went to hell just like my old fav AZTV. You'll remember this particular TV is connected to the big VHF/UHF on the roof. I installed a splitter and connected a little bow-tie. The signal went from very poor strength to "in the 90's" and no more pixelation.

Then, while checking out the other stations, I noticed KAET's signal had collapsed. Disconnected the bow-tie and good signal. Connected the bow-tie and bad signal.

So, the question for today is.....how can adding a UHF antenna affect a VHF signal?
 
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