Provided is a steel sheet for manufacturing a pipe having corrosion resistance against fuel vapor of fuel such as gasoline, light oil, bioethanol or bio-diesel fuel, and a pipe and a fuel supply pipe. The improved communication device apparatus and method additionally allow for the communication device to utilize an embedded BER tester to run commonly utilized BER tests on high speed communication channels associated with the communication device. The clock signal, which includes the target frequency, is generated by discarding the number of pulses from the reference clock signal using the masking pattern. The least-significant-bit counter provides an output signal when the least-significant-bit counter has a zero-count state. The field line direction is measured by the angle sensor as a measure of the field strength of the measuring field.