I use an outdoor VHF/UHF antenna pointed at the transmitting towers about 8 miles away.
It works great, and the
Twinhan software had no problems pulling the digital channels out.
That said, I have not used the card at all since I found that I can't have both the 3250 and the 102g card in the same box.
Perhaps if I switch to Linux (2.6+ kernel), I'll be able to do that. Windows has problems with more than one Connexant 878 chip in the machine, and both of these boards use that same chip.
So far, though, I've been too happy with MyTheatre, and I'm afraid I'll lose too much function if I switch to mythTV. So I've been doing without OTA
HDTV for the time being (perhaps until NTSC goes off the air, at which point my beloved TiVo will no longer work for local channels).