The 7694 has just enough gain for outside. If you put it in the attic, the signals would be weaker, but the attic loss is difficult to predict.
To find out, it would be necessary to try it.
PBS and ABC are in the red in your report. The tvfool FAQ says:
Yellow
An attic-mounted antenna is probably needed to pick up channels at this level and above
Red
A roof-mounted antenna is probably needed to pick up channels at this level and above
http://www.tvfool.com/index.php?opti...ask=view&id=57