Decoder description

Inmarsat std-C is a text messaging system that is in widespread use around the world, mostly among maritime users. Over 100,000 terminals are being used every day to send emails and other short text messages. This decoder allows you to fully reconstruct all types of messages, so compressed archives and images can be received. Decoder was designed especially for std-C, fine-tuned and tested, bringing you uncomparable performance.

Requirements


  • Antenna - 60cm or bigger dish antenna with
    L-Band feed and low noise amplifier
  • Receiver - SSB capable receiver that can tune
    1520MHz to 1550MHz.
  • Computer - P-III class PC running Windows2000
    (or better) with soundcard


Decoder GUI  UPDATED

Decoder GUI application is now available for FREE to current and all new customers!

This application greatly simplifies decoder configuration and tuning:
  • FFT display for signal tuning
  • All decoder settings can be easily configured
  • Configuration can be saved to file and loaded later
  • Application also includes decoder ouput display with message level highlighting and filtering
  • No installation needed - just copy to same directory as decoder and run
  • There is no limit on how many GUI applications you can run on single PC



        Current version: v0.4
        Released: 2016-09-21


Note that this application doesn't work with DEMO version!

Feature table


Feature std-C decoder
Standard 		WAVECOM
'SAT' option 		Hoka
Code300
Low cost, high performance Yes No No
Sound card based input Yes No Yes
Wide Range AFC tracking Yes Yes No
User-definable sample rate Yes No No
Save messages by SES ID Yes Yes No
Save raw binary frame Yes No No
Save messages to disk Yes Yes Yes
Parse message attachments Yes No No
Parse 'Office' Documents Yes No No
Reassemble multi-frame messages Yes Yes No
Enhanced Group Calling Yes Yes Yes
SafetyNET & FleetNET decode Yes Yes No
Full decode of bulletin-board Yes No No
Display CES capabilities Yes No No
Data Reporting decode Yes Yes No
Polling decode Yes Yes No
CES frequency decoding Yes No No
SES frequency allocation decoding Yes Yes No
Log in / Log out decode Yes Yes No

Demo version

Demo version with decoding limited to EGC (broadcast) messages is available as freeware for non-commercial use.


Features present in demo version:
  • EGC messages decoding and parsing (ASCII/ITA2/binary)
  • Full decoding of bulletin board, frequency lists, login ACKs


      • Current demo version: 1.0 (Released 2009-03-17, Better installer added on 2016-09-21)

Full version

Full version for personal use is available for 100€. This includes any future updates and support over email and IRC.

Payments are accepted over PayPal and from fully verified accounts only. If you are interested in purchasing full version or have any questions, you can contact me using email address at bottom of page.

Disclaimer

By downloading software from this site you agree to following terms:
This software should only be used to receive Inmarsat-C transmissions for which you are licensed. Reception of
other messages may not be legal in your country, and therefore your local laws should be checked and complied
with. WWW.INMARSATDECODER.COM is not responsible for unlawful use of this decoder software.