A computer system and method tests various language installations of an application program using a single test script. During each clock cycle, the encoder processes multiple bits and generates outputs consistent with those generated sequentially over multiple clock cycles in a conventional convolutional encoder. The downloaded access parameters may include information such as a security key, Service Set IDentifier, traffic channel allocation, and optimization parameters including transmit power, quality of service settings, and operational mode. The characteristic impedance of CPWG is controlled by reducing the gap between the signal line and coplanar ground plates.