Here is the Antennas Direct specifications for their 91XG:
http://www.antennasdirect.com/cmss_f...s/91XG-TDS.pdf
Here is the Specifications for the Antennacraft Y10713:
http://www.antennacraft.net/pdfs/Y10-7-13.pdf
Note that Antennas Direct uses dBi. Antennacraft and Winegard uses dBd. Both are valid references. To convert, dBi to dBd, subtract 2.15 from the dBi value.
I wish RCA published more comprehensive specifications... However my personal experience with the TVPRAMP1R agrees with other members observations.
http://forum.tvfool.com/showthread.php?t=13530
The LNA-200 seems to be overpriced a bit...
http://forum.tvfool.com/showthread.php?t=13583
My personal experience with the two separate antennas has paid off in being able to optimize the aim of each, resulting in slightly better overall reception reliability. Other members have also reported the combination to be their pick of off the shelf consumer grade antennas when going for peak performance.
That said, the HD7698P is not far behind.