MARS Members to Work with Radio Amateurs during SET and DOD COMEX 19-4

During October and corresponding with the ARRL Simulated Emergency Test
(SET), Military Auxiliary Radio System (MARS) members will be reaching
out to the amateur radio community to continue building working
relationships and improving interoperability. As part of this effort,
MARS will be promoting the use of a serial phase-shift keying protocol,
Military Standard 188-110 (M110), on the 60-meter interoperability
channels. Radio amateurs are authorized to use this digital mode on the
five 60-meter interop channels, although M110 exceeds the allowable
symbol rate that radio amateurs may use on all other HF bands.

Starting on November 2 and continuing until November 17, the MARS
community will be executing Department of Defense (DOD) Communications
Exercise (COMEX) 19-4. MARS members will use the exercise to continue
training and refining their operator skills to provide situational
awareness information, such as county status reports and weather

To announce the kickoff of the exercise, WWV and WWVH will broadcast
voice announcements starting on or about October 31. WWV will transmit
the announcements at 10 minutes past the hour, while WWVH will transmit
them at 10 minutes before the hour.

The communication exercise will culminate on the evening of November 16 (2200 to 2230 local time, 

0300-0330Z Nov17 zulu date)
with military stations sending M110 messages to the amateur community on
60-meter channel 1 (5330.5 kHz USB). All DOD communication exercises
simulate scenarios and do not affect any public or private

  The MS-DMT software for this task can be downloaded from the Army MARS software website, which provides this link:

Local help setting up the modem is available, contact

Dan Goldston WD4NG

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