Personal diagnostic devices including diagnostic patches and interactive medical bracelets are provided with a skinpatch interface, at least one analysis layer, a signal processing layer, and a user output interface. A condition for transferring the call to a base station of the radio access network of a second subsystem is detected in a radio network controller of the first subsystem. As a result, the pilots will not appear at the output except when the alignment is incorrect. The invention is also generally directed to a structure having projectile absorbing armor having at least two building blocks in interlocking engagement.