WINMOR is a
radio
Radio is the technology of signaling and communicating using radio waves. Radio waves are electromagnetic waves of frequency between 30 hertz (Hz) and 300 gigahertz (GHz). They are generated by an electronic device called a transmit ...
transmission protocol intended to be used in the
Winlink
Winlink, or formally, Winlink Global Radio Email (registered US Service Mark), also known as the Winlink 2000 Network, is a worldwide radio messaging system that uses amateur-band radio frequency, radio frequencies and government frequencies to p ...
2000 Global Radio E-mail System by
amateur radio
Amateur radio, also known as ham radio, is the use of the radio frequency spectrum for purposes of non-commercial exchange of messages, wireless experimentation, self-training, private recreation, radiosport, contesting, and emergency communic ...
operators, marine radio stations, and radio stations in isolated areas. WINMOR complemented the
PACTOR
PACTOR is a :Radio modulation modes, radio modulation mode used by amateur radio operators, Marine and mobile radio telephony, marine radio stations, military or government users such as the US Department of Homeland Security, and radio stations in ...
modes in the
high frequency
High frequency (HF) is the ITU designation for the range of radio frequency electromagnetic waves (radio waves) between 3 and 30 megahertz (MHz). It is also known as the decameter band or decameter wave as its wavelengths range from one to ten ...
portion of the
Winlink
Winlink, or formally, Winlink Global Radio Email (registered US Service Mark), also known as the Winlink 2000 Network, is a worldwide radio messaging system that uses amateur-band radio frequency, radio frequencies and government frequencies to p ...
system, but since July 2020 has been deprecated by Winlink.org in favour of other, now more modern and capable protocols, such as ARDOP.
WINMOR debuted at the 2008
ARRL
The American Radio Relay League (ARRL) is the largest membership association of amateur radio enthusiasts in the United States. ARRL is a non-profit organization, and was co-founded on April 6, 1914, by Hiram Percy Maxim and Clarence D. Tuska of ...
/
TAPR Digital Communications Conference. 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
A terminal node controller (TNC) is a device used by amateur radio operators to participate in AX.25 packet radio networks. It is similar in function to the Packet Assembler/Disassemblers used on X.25 networks, with the addition of a modem to ...
. It has two modes, either 500 or 1600
Hertz
The hertz (symbol: Hz) is the unit of frequency in the International System of Units (SI), equivalent to one event (or cycle) per second. The hertz is an SI derived unit whose expression in terms of SI base units is s−1, meaning that on ...
in
bandwidth
Bandwidth commonly refers to:
* Bandwidth (signal processing) or ''analog bandwidth'', ''frequency bandwidth'', or ''radio bandwidth'', a measure of the width of a frequency range
* Bandwidth (computing), the rate of data transfer, bit rate or thr ...
, 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. WINMOR supports both connected (
ARQ) and
FEC (broadcast) modes.
Operational peer-to-peer (on-air) beta testing of WINMOR began on 17 September 2009. Deployment of RMS WINMOR servers for the Winlink system began in January 2010.
Transmission modes
500
Hz bandwidth
Bandwidth commonly refers to:
* Bandwidth (signal processing) or ''analog bandwidth'', ''frequency bandwidth'', or ''radio bandwidth'', a measure of the width of a frequency range
* Bandwidth (computing), the rate of data transfer, bit rate or thr ...
uses 2
carriers, 1600 Hz
bandwidth
Bandwidth commonly refers to:
* Bandwidth (signal processing) or ''analog bandwidth'', ''frequency bandwidth'', or ''radio bandwidth'', a measure of the width of a frequency range
* Bandwidth (computing), the rate of data transfer, bit rate or thr ...
uses 8
carriers.
[{{cite web, url=http://www.arrl.org/files/file/WINMOR.pdf, title=Beta release of protocol specification]
Each carrier uses 46.875 Baud
4FSK or 93.75 Baud
PSK using
Trellis Coded Modulation
In telecommunication, trellis modulation (also known as trellis coded modulation, or simply TCM) is a modulation scheme that transmits information with high efficiency over band-limited channels such as telephone lines. Gottfried Ungerboeck invent ...
with 4, 8, or 16 phases.
See also
*
Shortwave
Shortwave radio is radio transmission using shortwave (SW) radio frequencies. There is no official definition of the band, but the range always includes all of the high frequency band (HF), which extends from 3 to 30 MHz (100 to 10 me ...
*
Radioteletype
Radioteletype (RTTY) is a telecommunications system consisting originally of two or more electromechanical teleprinters in different locations connected by radio rather than a wired link. Radioteletype evolved from earlier landline teleprinter o ...
*
PACTOR
PACTOR is a :Radio modulation modes, radio modulation mode used by amateur radio operators, Marine and mobile radio telephony, marine radio stations, military or government users such as the US Department of Homeland Security, and radio stations in ...
References
External links
Digital Communications ConferenceWinlink WINMOR Information pageWINMOR users group
Radio technology