Thank you for the confirmation of your location. I knew your approximate location from your report, but it took me an hour staring at the satellite image to find your roof. Your image gave me a clue.
Thanks for the photo from your roof. It shows trees thick enough to interfere with TV signals, especially when wet. I wonder how the reception will be when the leaves fall.
Quote:
|
WTTW (ch 11) is all but unwatchable (only started earlier this year-- before then was fine),
|
Quote:
|
I went up in the attic this morning and double checked the aim on the antenna-- it might have been a few degrees off optimal, so I tweaked that a little. Didn't seem to make any significant difference-- WTTW was still heavily pixelated.
|
WTTW is on real channel 47, virtual channel 11.1, so it requires a UHF antenna. If you must use the virtual channel number, please use the decimal form to avoid confusion.
It is the real channel number that determines what antenna is needed.
VHF-Low, real channels 2-6
VHF-High, real channels 7-13
UHF, real channels 14-51
The virtual channel number (like 11.1) is a holdover from the analog TV days to maintain the identity of the station, and is what the TV displays.
The reason why WTTW is affected, but not other UHF channels, is because the signal is scattered as it moves through the trees. The scattering pattern is not the same for different frequencies.
Quote:
|
What about trying to raise the antenna up or down 5-6 inches?
|
It might help; no guarantee. The trees and the roof have already done damage to the signal.
Quote:
|
Any opinion on whether moving the antenna up to the roof would help?
|
That would be another try it and see experiment. It would avoid the roof loss, but not the tree interference. There is no magic antenna that can "see" through trees.
Quote:
|
I would also be open to a different antenna if it would allow more flexible positioning, whether in the attic or on the roof. Especially a smaller one might not be objectionable to my wife if mounted on the roof. But I would have to start that whole research cycle again.
|
If you are willing to experiment, I suggest the Antennas Direct DB4e. WTTW will be moving to channel 25 because of UHF repack. The DB4e and the DB8e were rescaled to give more gain at the lower end of UHF when it was reduced to 14 to 51.
http://www.rabbitears.info/market.ph...&callsign=wttw
The DB4e is primarily a UHF antenna. If it doesn't pick up WBBM on real VHF-High channel 12, combine the DB4e with your present antenna using a UHF-VHF combiner (UVSJ).
https://www.antennasdirect.com/store...Combiners.html