This is an easy fix! Try the suggestions presented here: http://www.amsat.org/amsat-new/articles/Mode-J/

The diplexer fix works great, and full duplex is a wonderful and very useful thing.

Congrats on your success so far.

73, Drew KO4MA

The other downside is that even with two transceivers, I'm unable to work full-duplex. The two bands on the antenna use seperate elements and feed points, but share a boom. Transmitting on 2m completely overloads the front-end of the IC-7000. While full duplex would be useful, it's not absolutely necessary.