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|A program to receive weather reports, weather charts and
SeaTTY a program to receive weather reports,
navigational warnings and weather charts transmitted in RTTY, NAVTEX
and HF-FAX (WEFAX) modes on longwave and shortwave bands. No additional
hardware is required — you need only a receiver and computer
with a sound card.
The working area of the program is divided into several windows,
the sizes of which can be changed by the user by dragging the borders.
The "SQL" button
switches squelch on; The "AFC" button (auto frequency
control) adjusts the long red lines (working frequencies) to the
closest peak frequencies; The "Reverse/Normal" button
defines decoded signal polarity and the "Mode" menu selects
a working mode (RTTY, NAVTEX or HF-FAX).
The "Setup->Fast Sync
in NAVTEX" menu option define synchronization method in NAVTEX
mode; The "OnTop" button puts SeaTTY in front of all windows.
It writes all symbols received
in RTTY and NAVTEX modes in raw log file in the "RAW_LOGS"
folder. A name of log file is date-stamped. For example, "01-10-08.TXT"
is raw log file for 08 October 2001.
All weather messages start
with "ZCZC" sequence and finish by "NNNN" sequence.
SeaTTY finds these sequences in symbol stream and writes messages
separately in the "Messages" folder. A name of message
file is time-stamped.
SeaTTY can decode signals from
a WAVE-file, SeaTTY tries to define transmission speed in lines
per minute (LPM) and image resolution (index of cooperation - IOC)
automatically. If automatic detection is fail, SeaTTY use values
from LPM and IOC fields.
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