Yes, test the antenna outdoors. You have good to moderate signal access through 2-edge conditions with the major broadcasters. With the antenna in your attic, you have created 3-edge conditions.
My thoughts would be, through discussion with your wife, agree to test the CM-2016 outdoors on your roof (even a patio if available). If RF 8 and RF 12 appear, then you can have another discussion. Attics aren't and will never be ideal for receiving signals. Further, with attic installs, starting about 25-20 db signal strengths, the weaker signals just don't have the "punch" to go through solid objects (your roof). Thus, they may be even more erratic and may not even decode. The red shaded signals are going to be even less likely to decode.
If the attic is the only option, then see if you can move the antenna around the attic and finding a "sweet spot." If you can't find a sweet spot, attic installations can require more robust antenna applications than what would normally be needed outside to offset the issues of weakened signals.
I wouldn't give up on the CM-2016 either until your tests confirm if you can or can't receive RF 8 and RF 12 with it. Pointing to magnetic 318 should land you a good portion and the major broadcasters serving Portland.
If the tests don't work, then we discuss a perhaps more aggressive set up that accounts for the 2-edge conditions and what is the best options for reliable reception that meets your other half's requirements.
Best of luck!
