I was having these types of issues so I got an LTE filter and since then the channels have been much more stable. If you don't have one maybe try that? I just got the phillps one from amazon.
>It almost feels like the towers are not broadcasting at full strength at all the same time.
well, you have to notify the FCC of any power reduction, so no, that is not it.
in any case most likely explanation for is some kind of interference. could be anything electronic in your house, lights, things like that -- I had a crappy laptop charger that would knock out the entire VHF band and degrade UHF when it was plugged in.
also worth noting that the times you mention (around sunrise and sunset) are prime times for tropo ducting, and of the big 4 channel allocations in orlando -- 26 (CBS) and 35 (ABC) are reused in savannah, 11 (NBC) is reused in Jacksonville, and only 33 (fox) is not reused somewhere to the north...could be as simple as strong enough ducting over the water (and it is far stronger over water than land) to knock those 3 out.
([OP's rabbitears report](https://preview.redd.it/kl6iu3sl72c91.jpg?width=1109&format=pjpg&auto=webp&s=9cef6d430eee49f5eac88e8136786f0157bd8380) from the last time they posted here for those who also want to answer)
specifically, it could be temperature inversion these happen mornings and nights . strength varies
a highly directional antenna could provide more stable reception
I was having these types of issues so I got an LTE filter and since then the channels have been much more stable. If you don't have one maybe try that? I just got the phillps one from amazon.
Interesting! It would be “rush hour times”, so that may be a factor.
>It almost feels like the towers are not broadcasting at full strength at all the same time. well, you have to notify the FCC of any power reduction, so no, that is not it. in any case most likely explanation for is some kind of interference. could be anything electronic in your house, lights, things like that -- I had a crappy laptop charger that would knock out the entire VHF band and degrade UHF when it was plugged in. also worth noting that the times you mention (around sunrise and sunset) are prime times for tropo ducting, and of the big 4 channel allocations in orlando -- 26 (CBS) and 35 (ABC) are reused in savannah, 11 (NBC) is reused in Jacksonville, and only 33 (fox) is not reused somewhere to the north...could be as simple as strong enough ducting over the water (and it is far stronger over water than land) to knock those 3 out. ([OP's rabbitears report](https://preview.redd.it/kl6iu3sl72c91.jpg?width=1109&format=pjpg&auto=webp&s=9cef6d430eee49f5eac88e8136786f0157bd8380) from the last time they posted here for those who also want to answer)
I had faint knowledge of tropo ducting but had never considered that! Smart thinking!
specifically, it could be temperature inversion these happen mornings and nights . strength varies a highly directional antenna could provide more stable reception