mh74,
When you check multiple sites for the same info, you're almost always going to get some different answers. Happens here, happens everywhere !
I'm thinking that given Antennaweb's "lack" of asking questions like we have here, that they are trying to pick up that NBC down in the amber colored section. (that being your only NBC station on the chart that's remotely receivable)
But, IF you consider the 7697 or 7698, you'll only be picking up from 1 to 2 dB of gain, and having to deal with antennas which are TWO feet longer than the 7696, heavier, and, probably will require some Guying, even with a ten foot mast.
Will either work... sure ! Antennaweb is not wrong, but, is it worth it ???
I'd say no, stay with the 7696.
Have a good Day !
S.W.