I have a directv installation that includes... 1. Slimline AU9-SL3 disk 2. Zinwell WB68 Multiswitch 3. Two HR21-100's I have a bedroom that is around 250-300 ft from the zinwell that I want to put an HD receiver in... The question I have is will the direct run that far from the Multiswitch? If not can I amplify it or something?