Another problem with the A320 amplifier is JITC certification, it is not certified by JITC for SATCOM use. None of the AMTI amplifiers are JITC certified.
We tried to buy a sexy amp last year but the G-6 disapproved the purchase because it was not certified by JITC.
http://jitc.fhu.disa.mil/reg/dama.html
Apparently, everything for UHF SATCOM must be JITC certified or it cannot be used or purchased.