What network is the blue stripe on? It’s that simple. Is it on ABC NBC CBS CBC PBS? If you can’t tell us the network, then we can’t help you. Your question is way to vague.
I'm betting that band doesn't show up on other televisions.
That is indeed peculiar and somewhat reminiscent of multipath in NTSC broadcasts. DTV multipath doesn't manifest like that. I'm at a loss.
Have you tried adjusting aim on the antenna slightly?
Is it really that hard to climb up on the roof, Apply bishop tape, Drill 4 lag bolts, adjust the mast and install the antenna? I don’t see this install going nowhere if you can’t install the antenna on the roof.
Sorry Larry I'm 70 and I agree with the danger but I still use an extension ladder. Just be careful. I still like your chimney.I am 69 years old Alex
If I fall at my age I get hurt
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Above the rain gutter and a little ways back over my window
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Antennas typically work better when level and the elements aren't all bent out of shape. Since you're currently happy, I wouldn't worry about it unless heavy weather creates a problem.
With just a little care, both can come out unscathed.Better the antenna bent out of shape than the installer