WINMOR is a radio transmission protocol intended to be used in the Winlink global radio email system by amateur radio operators, marine radio stations, and radio stations in isolated areas. WINMOR will complement the PACTOR modes in the high-frequency portion of the Winlink system. Unlike PACTOR II & III, only a simple computer soundcard-to-radio interface is required, as compared to PACTOR’s relatively expensive external terminal node controller. It has two modes, either 500 or 1600 Hertz in bandwidth, and provides ARQ speeds ranging from 67 to at least 1300 bits per second, similar to PACTOR’s various modes. It is fully documented and without restrictions or license issues preventing anyone from using the protocol in other software.