Antennas Direct's Clearstream 2 might be worth a try. I just did a comparison between that and the Mohu leaf (the latter in both the amplified and non versions, and very similar to your Winegard), and the Clearstream was the winner for me. I am in an apartment myself and the Clearstream sits in my window sill, but it may prove too bulky for you if you had taped the Winegard to your window. However, I found mine worked just as well without the VHF attachment, and your mileage may vary, but removing it does take away from the bulk. The Clearstream is also more expensive, but Best Buy has open box offerings for about half the price.