An impedance matching network is integrated on a first die and coupled to a second die, with the first and second dies mounted on a conductive back plate. The animal harness has two straps extending around the animal, crossing in the chest area where a chest pad is located and crossing in the back area where a back pad is located. The SIMD type microprocessor further includes a global processor, a range designation bus for lower-order bits which connects the global processor to the range determining circuit for lower-order bits, and a range designation bus for upper-order bits which connects the global processor to the range determining circuit for upper-order bits.