DSCdecoder v4.5 英文正式版(解碼船舶連續數字選擇呼叫(DSC)信號的軟體)
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DSCdecoder是一款解碼船舶連續數字選擇呼叫(DSC)信號的軟體。
DSCdecoder Features
DSCdecoder decodes the DSC digital signals from ships and coast stations using the
sound card in your PC. You need a suitable MF, HF or VHF band radio receiver tuned
to one of the DSC distress and calling channels or to one of the Navtex channels.
The program decodes the received digital data and displays and logs the messages.
Signal mode - In Signal Mode, DSCdecoder displays the raw digital signals on your
PC screen in a diagnostic display which helps you to set up the system and tune the
receiver. DSCdecoder also displays a rolling audio spectrum display if that is
easier for you.Spectrum mode - In Spectrum Mode, DSCdecoder displays the spectrum
of the audio signals on your PC screen as an aid to tuning the receiver. You can
click on the spectrum display to retune the decoder to take account of any mistuning
fo the radio itself.Message mode - In Message Mode, DSCdecoder displays each decoded
message in plain language on your PC screen. The sender, the recipient,the priority,
and any frequency, position, or enquiry data are decoded and displayed.Chart mode -
In Chart Mode, DSCdecoder displays the position of any ship or call area that has
been included in any decoded message. DSCd charts are compatible with ShipPlotter
charts.ATIS decode - In addition to decoding the MF, HF and VHF modes of DSC,
DSCdecoder is also able to decode the ATIS (Automatic Transmitter Identification
System) data bursts that are transmitted on the regular VHF marine channels in the
Benelux and Rhineland river systems.Navtex decode - In addition to decoding the MF,
HF and VHF modes of DSC, DSCdecoder is also able to decode Navtex transmissions
which are used for navigational warnings and weather bulletins. As the example at
right shows, Navtex messages that contain positions in a recognisable format also
plot in chart mode.The message identifier plots by default and if the cursor hovers
over the identifier, the content of the message is displayed over the chart. DGPS
decode - DSCdecoder is also able to decode DGPS transmissions which are used for
added navigational accuracy using GPS.Message log - DSCdecoder stores all messages
received and decoded in a text file for later analysis and review. The log file is
time stamped and DSC messages are punctuated for easy importing into a spreadsheet
or database.Alarms - DSCdecoder can be configured to sound an audible alarm on
receipt of a distress call or a distress relay message. It can also be configured to
sound an alert on receipt of any message containing a specified text string such as
the MMSI number of a ship or the name of a coast station. You can even configure it
to send an email to a designated address on receipt of an alarm or an alert.Floating
window - DSCdecoder can be configured to display a floating window showing just the
last two messages. The window is always on top, regardless of the focus that some
other application may have. The means that you can work on something else while
keeping an eye on messages as they come in.
Automatic lookup - DSCdecoder can access the ITU database of MMSI numbers to retrieve
the name and callsign of any ship that is mentioned in received messages. Coast
station MMSI numbers are translated using a text file that accompanies the program.
Automatic FTP transfer - DSCdecoder can perform an FTP transfer to a user-defined FTP
server sending either the most recent messages as a text file, or the current chart
image as a JPEG File at user-defined intervals.
Automatic tuning - DSCdecoder can auto tune the demodulator to accommodate a range of
subcarreir frequencies to relieve the user of the need to tune the receiver precisely.
UDP output - DSCdecoder can send decoded data to a UDP/IP destination for processing
elsewhere on the network.
Navtex serial input - DSCdecoder can accept serial Navtex messages from the NASA
Navtex Engine. Messages with positions in them are displayed grpahically on a chart.
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