Originally intended for outdoor use, the Antennas Direct DB2 draws the most kudos as an indoor antenna for UHF reception. It has some serious shortcomings -- including its relatively large size compared to other indoor antenna options, lack of an included mount for indoor use and UHF-only coverage -- but those are offset by some serious positives, including great gain across the entire UHF band. The DB2 is multi-directional and can receive stations equally well across a fairly wide arc toward the front of the antenna, but still fight off issues with multipath interference -- signal reflections from buildings, etc. -- coming from the sides or rear. The range is excellent at 30 miles, and some users report that signals from farther away can be received if conditions are right. The lifetime warranty is another plus. However, if you need to receive VHF channels you'll need a separate antenna for that. Another option is to instead use a VHF/UHF combo antenna such as the Terk HDTVa (*Est. $40). The HDTVa is also well regarded for an indoor HDTV antenna, but is highly directional for UHF so you might need to frequently reposition it if channels come in from more than one direction at your location.
The Antennas Direct DB2 has been widely reviewed by experts, enthusiasts and owners. HDTVPrimer.com's coverage is brief and a little technical, but helpful. We also found the report and feedback provided in EV's Indoor Antenna Round-Up to be a worthwhile read. Hundreds of user reports can be found at HDTVAntennaLabs.com and Amazon.com.
Ken Nist calls the Antennas Direct DB2 a UHF antenna that is "without flaws." Though large, he adds that it is not unreasonably so for indoor use. The lack of an indoor mount is an issue, but Nist adds that one reader had good luck with an inexpensive paper towel holder.
Review: The DB2 from Antennas Direct, Ken Nist, Jan. 30, 2009
Guide author "EscapeVelocity" calls the DB2 a "superior antenna for use indoors." He adds that though the antenna was intended originally for outdoor use, the DB2 is small enough and "not too aesthetically unpleasing to do indoor duties in tough situations." The author also notes that an external amplifier, such as the Channel Master CM7777 Titan2 (*Est. $60), can be added where signals levels are very low. Several DIY mounting ideas are provided.
Review: EV's Indoor Antenna Round-Up, Contributors to AVSForum.com
Among indoor antennas with lots of feedback (more than 25 reports), the Antennas Direct DB2 is a clear leader, with more than 400 users rating it an overall 4.5 out of 5 stars. Many use it indoors, but a significant portion also report on outside installations.
Review: Antennas Direct DB2 HDTV Antenna Reviews, Contributors to HDTVAntennaLabs.com
Nearly as many users report here as at HDTVAntennaLabs.com -- more than 400 at last look -- and reactions are similar: a strong 4.5 out of 5 stars. Some reports are short, but others are nicely detailed and include comparisons to other antennas.
Review: Antennas Direct DB2 Multi Directional HDTV Antenna, Contributors to Amazon.com