This Standard details definitions and methods of measurement of characteristics of SSB transmitters and receivers or SSB/AM transmitters and receivers, operating in the SSB mode, intended for operation in the Class "D" Citizens Radio Service as defined in Part 95 of the FCC Rules and Regulations. The minimum standards herein apply to both upper and lower sideband modes of operation when they are provided and to all channel settings included in the equipment and over the range of carrier frequencies specified in 95.41 (d) of the FCC Rules and Regulations. This Standard is intended to promote the compatibility of these transmitters and receivers with the systems in which they will operate.