[amsat-bb] FT-847, uni-directional or be-directional version?

[Erich Eichmann]

Hello,
Does somebody know whether one can recognize by the serial number of 
the  FT-847 whether it is an old, uni-directional or a newer, 
bi-directional vrsion? A user here in Germany has two FT-847 with serial 
numbers 3M840064 and OE320084.

73s, Erich, DK1TB