The standard applies to voice-modulated nonmultiplex receivers which either do not have special subsystems such as selective signaling or voice privacy or in which such subsystems are bypassed or disabled during testing for compliance with the standard. The standard superseded the September 1975 standard in this area and includes receivers operating in the 806-866 MHz frequency band. It also provides modified requirements for receiver sensitivity, audioresponse, and closing time. The tests have been revised to accommodate receivers with a balanced audio output and updated to incorporate improved tests of spurious and harmonic response attenuation and intermodulation attenuation. Figures, list of terms and abbreviations, 6 references.