Zack,

You can use a duplexer/diplexer on the 70cm side.

http://www.amsat.org/amsat-new/articles/Mode-J/

Dave - KB1PVH

Sent from my Verizon Wireless DROID X On Jan 14, 2011 9:53 AM, "Zachary Beougher" zack.kd8ksn@hotmail.com wrote: