WINMOR
WINMOR (English WinLink mail over radio " WinLink -mail via radio " ) refers to a digital mode in amateur radio.
Purpose
It was developed for use with WinLink and allows you to transfer e-mail messages via shortwave amateur radio. WINMOR offers an alternative to Pactor transmission in the shortwave region of the WinLink system. WINMOR was presented at the 2008 ARRL / TAPR Digital Communications Conference (DCC).
Unlike Pactor WINMOR works without expensive TNC, it rich the sound card of a computer and a normal transceiver for modulating and demodulating. However, can be achieved with WINMOR at a bandwidth of only 1600 Hz, a data transfer rate of up to 1300 bit / s; Pactor -IV activated compression, however, reaches a data transfer rate up to 10,500 bit / s In comparison, ISDN has a data transfer rate of 64,000 bits / sec (64 kbits / s).
WINMOR can work with 500 or 1600 Hz bandwidth. It is completely open and can be used without royalties. A platform- independent and open source under the LGPL license WINMOR implementation of the protocol, called openMOR is in development.
Modulation
When WINMOR modulation come from four-fold frequency shift on simple quadrature up to sixteen times the quadrature amplitude modulation different variants.