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New release of MULTIPSK (4.34) - Separation of ARQ FAE from ALE in 141A and ALE400 #MultipskNEWS


Andrew OBrien
 


---------- Forwarded message ----------
From: Patrick Lindecker <f6cte@...>
Date: Mon, Feb 12, 2018 at 4:48 PM
Subject: [] New release of MULTIPSK (4.34) - Separation of ARQ FAE from ALE in 141A and ALE400
To: main@digitalradio.groups.io


New release of MULTIPSK (4.34)

 

Pour les francophones: la version en français de ce message se trouve sur mon site (http://f6cte.free.fr). Il suffit de cliquer sur le lien "Principales modifications (courriel avertissant de la sortie de la nouvelle version)".


Hello to all Ham and SWL,

 

The new release of MultiPSK (4.34) is on my Web site (http://f6cte.free.fr).
The mirror site is Earl's, N8KBR: http://www.eqth.info/f6cte/MULTIPSK_setup.exe

The MD5 signature of the downloaded MULTIPSK_setup.exe file to, possibly, check (with WinMD5 for example), that the downloading works without error, is equal to: 3d1752e8c4b54cd2da3b908d9d17e163

Multipsk associated to Clock are freeware programs but with functions submitted to a licence (by user key).

 

The main improvement of MULTIPSK 4.34 is the following:

 

ARQ FAE

ARQ FAE is separated from ALE, the ARQ FAE becoming an autonomous protocol of 141A and ALE400 modes.

 

Generalities

"ARQ FAE" means:

·                     "ARQ" for "Automatic Repetition reQuest",

·                     "FAE" for "Fast Acknowledged Exchange".

 

The ARQ FAE protocol stems from ALE protocols. It permits QSO fast and error-free in 141A and ALE400 modes.

ALE400 mode is specific to Multipsk. It is a MIL-STD-188-141A mode but transmitted in 50 bauds instead of 125 bauds and in a 400 Hz bandwidth instead of 2000 Hz.

 

The transmission and the reception are managed as in Packet (connected modes). Simply type the text or insert a sequence (macro) in the editor window and the text will be send. The associated protocol will allow the user to establish a fast link and to exchange with another Ham, still in  in linked state:

 

·                     conversation (chat) error-free messages,

·                     small photos,

·                     mails with ou without files (small compressed pictures, for example),

·                     APRS positions, with automatic display on the APRS map.

 

The characters exchanged are 8 bits length so as to permit exchange in all ASCII-ANSI languages (English, French, German, Russian...), but not those with ideograms (as Japonese).

This protocol is not standard and does not exist in the FS 1045A specifications.

 

Note: there is a PDF document which goal is to show from Multipsk snapshots how to do the basic operations in ARQ FAE. This document is available from my site http://f6cte.free.fr/ARQ_FAE_in_141A_and_ALE400_easy_with_Multipsk.pdf

(copy and paste this adress in Internet Explorer (or equivalent) Net adress field).It is completed by http://f6cte.free.fr/The_ARQ_FAE_beacon_easy_with_Multipsk.pdf

 

Other improvements:

 

·                     integration of an updated transmitters DGPS list  (thanks to Alan Gate)

 

 

Note about TLE files: if you use the "Satellites" option, don't forget to download

(with the "Downloading" button) the 5 recent TLE files (amateur.txt, argos.txt, orbcomm.txt, stations.txt, weather.txt).

 

Note about translation of Multipsk.exe and Clock .exe:  the 4.33 version of Multipsk has been completely translated to Spanish by Joachin (EA4ZB), from French. The translation file is on my Web site (http://f6cte.free.fr/Translation_files.htm).

 

73

Patrick