They both use the P-26. The P-26 will power both the HA-2 and the HA-6 at the same time. Best Regards, Walt Cates, WD0GOF, http://www.myhamshack.com/WD0GOF/<http://www.myhamshack.com/WD0GOF/> ISAIAH 5:20 My home town http://www.youtube.com/watch?v=PJk8XIPEDeI<http://www.youtube.com/watch?v=PJk8XIPEDeI>