The key at the bottom of the report says it all: Stations listed in the yellow zone are generally too weak to be received with an indoor antenna. Here are some possibilities:
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Do you have access to an attic? Try putting the HDTVa up there on a long coax cord, as long as you're able to get house current to it as well. Higher is usually better.
•
Do you have a balcony that faces generally westward? An antenna mast could be clamped to a railing spoke, with an antenna mounted on top. A
flat coax cable allows one to snake the antenna cable through a window or door frame without drilling holes. (As long as you own or have a leasehold on the premises to which the balcony is attached, there's a federal regulation that says you can do this regardless of what an HOA or landlord thinks about it. Be aware that they can require you to insure it in case it falls and damages property or injures someone, among other things.)
With either of these options, a compact outdoor antenna such as the Winegard
HD-7694P should work reasonably well.
• If neither of these options is possible, extend your current antenna's coax cable and place it by a window. That should help, particularly if it has a view to the west. To extend the cable, use an additional length of coax and splice it to the antenna's cable using a barrel connector. They look like this:

,
cost less than a couple of bucks and should be available in most places that sell coax cable.