Originally posted by Paul B. Musser
I actually have an...old antenna mounted in my attic from the previous owners, with a 300 Ohm line down to the system. It gets 13 well, but not the UHF channels.
I would highly recommend trying a gain amp on the "old" attic antenna, just get a $1 coax adapter (swiches the "Crows Feet" wire to a "Cable" wire) from Radio Shack and a $10-$20 line amp. It would be better if the line amp was in the attic at the "Head End," and you replace the 300 ohm wiring in the house to coax. Hook that old antenna (with a new amp) right up to your HD-OTA receiver.
If that old antenna already has a line amp, then it may be the best you can do. My antenna came with the house, and without a line amp could only get Ch. 6 analog, nothing else! Notice my elevation (2000'), once I hooked a line amp to my old antenna I was getting stations from 5 totally different markets: Albany, Hartford, Utica, Springfield and even Canada. Note: It's my elevation that helps the most, but without the line amp, I only got one channel, now I get more than 20.