The present invention relates to the reduction of artifacts introduced by sending data at a higher rate than the bandwidth of the communication channel, such as the voltage and current offsets introduced in the data at the receiver as a function of the preceding data. The receiver sub has azimuth and depth profiles for positively locating a predetermined position within the borehole. The method also includes transmitting a message to the wireless device, delivering the call to the wireline device when a return message is not received from the wireless device, and determining a location of the wireless device when a return message is received from the wireless device. The self steering capability may be obtained by use of a longitudinally oriented rocker that may tend to permit resistance to self steering that is proportional to the weight carried across the interface.