Hello I have picked up a couple R-390A's and I have a question. Both have EAC tags and EAC modules but the tags are different. One has FR-36-039-N-6-00189(E) and the other has DAAB05-67-C-0155. Does anyone know the difference? I am new to this and please remember that hi. Both are in very good shape and work FB. Thanks for any help. Ronnie KE4VPN