Currently, I have a Radio Shack omnidirectional antenna (I would provide a link to the product, but evidently I can't) hooked up. The antenna is attached to the roof of the house (two story). The house sits in a clearing but is surrounded by tall trees; the trees are about 100' from the house. According to antennaweb, these are my OTA available channels:

DTV Antenna
Type Call Sign Channel Network City State Live
Date Compass
Orientation Miles
From Frequency
Assignment
red - vhf WXIA 11 NBC ATLANTA GA 71° 24.4 11
* red - vhf WXIA-DT 11.1 NBC ATLANTA GA 71° 24.4 10
red - uhf WTBS 17 TBS ATLANTA GA 64° 22.2 17
red - vhf WSB 2 ABC ATLANTA GA 69° 23.0 2
red - vhf WAGA 5 FOX ATLANTA GA 65° 25.4 5
* blue - uhf WAGA-DT 5.1 FOX ATLANTA GA 65° 25.4 27
blue - uhf WATC 57 REL ATLANTA GA 30° 34.2 57
* blue - uhf WTBS-DT 17.1 TBS ATLANTA GA 64° 25.5 20
blue - vhf WGTV 8 PBS ATHENS GA 73° 35.6 8
blue - uhf WPBA 30 PBS ATLANTA GA 71° 24.2 30
blue - uhf WUPA 69 CW ATLANTA GA 72° 22.6 69
* blue - uhf WUPA-DT 43.1 CW ATLANTA GA 72° 22.6 43
* blue - uhf WUVG-DT 34.1 UNI ATHENS GA 64° 25.5 48
blue - uhf WATL 36 MNT ATLANTA GA 64° 25.4 36
* blue - uhf WATL-DT 36.1 MNT ATLANTA GA 64° 25.5 25
blue - uhf WGCL 46 CBS ATLANTA GA 64° 25.4 46
* violet - uhf WGCL-DT 46.1 CBS ATLANTA GA 64° 25.4 19
* violet - uhf WHSG-DT 44.1 TBN MONROE GA 72° 22.6 44
* violet - uhf WSB-DT 2.1 ABC ATLANTA GA 69° 23.0 39

I am receiving (analog) channels 2, 5, and 11 quite clearly. Channel 8 is very snowy and the audio drops in and out. The only other two channels I am getting a signal from are 17 and 46, but they are so poor that they are unwatchable.

My desire is to be able to receive all of the digital channels plus channel 8 (which should be digital in a couple months). I am thinking about buying the DB2 UHF antenna from Antennas Direct, but if the one I currently have should be working I would like to know. If I can get away with not having to buy a new antenna right now, that would be really great.

Any suggestions?

(I do have an ATSC tuner.)