The unit recognizing module combined with energy supply (EE) includes a supply block (3) and between this and the energy source with variable frequency (FMG) a further filter block (1) and a potential separating block (2).

A mounting hole in the filter block is closely fit about the mounting post projecting from the housing.

In the Type 2 architecture, the I/Q switch is moved so that it is directly adjacent to the receive mixers, requiring only one antialiasing filter block and gain block.