This Rate Training Manual and Nonresident Career Course (RTM/NRCC) form a self-study package that will enable Navy radiomen to help themselves to fulfill the requirements of their rating. Of the seventeen chapters in the manual, the first is nontechnical, providing information concerning the radioman rating and the Navy advancement system and helpful hints for preparing for Navy examinations. The remaining sixteen chapters deal with the technical requirements of the rating which include the subjects of basic electricity; transmitter, receiver, and antenna theory; types and theory of radio wave propagation; systems of diagnosis and quality assurance; testing equipment; communications organization, security, and message formats; theory and operation of teletypewriter circuits, automated systems, and radio communications equipment; procedures of fleet communications and distress communications; and classes and types of commercial traffic. The manual's appendix furnishes a glossary of terms, electronics symbols, and basic electrical formulas. Using the manual as its textbook, the NRCC contains a set of assignments consisting of multiple choice questions and self-scoring answer sheets. The learning objectives which precede each assignment set are designed to lead students through the RTM. (ELG)