New release of MULTIPSK 4.45.6 #Multipsk
New release of MULTIPSK (4.45.6)
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)".
The new release of MultiPSK (4.45.6) is on my Web site (http://f6cte.free.fr/index_anglais.htm).
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:
Multipsk associated to Clock are freeware programs but with functions submitted to a licence (by user key).
The improvements of MULTIPSK 4.45.6 are the following:
· Replacement of the EM (Extended Message) sub-mode by the new EM mode
The EM mode is more reliable and a bit more sensitive than the former EM sub-mode (deleted in this new Multipsk version and not compatible with the new EM mode).
Its main use is to give the possibility to have simultaneous QSO (at standard speed similar to the PSK31 one) between different Hams, as messages are displayed on the waterfall and on the reception windows.
For more details, EM specifications Version 2 are given here: http://f6cte.free.fr/SPECIFICATIONS.ZIP
Example of an EM « CQ » message displayed on the waterfall.
So everyone can see these messages and possibly answer. The number of QSO is limited only by the bandwidth.
A channel of about 400 Hz on the waterfall seems reasonable to display the message. So 6 QSO in a standard phone bandwidth (2500 Hz) will be nice, each QSO being visible by everybody.
The sensitivity (minimum Signal to Noise ratio) is equal to -15,5 dB (with the first decodings at -18 dB), which is better that BPSK31 and Olivia and comparable to MFSK8.
With the EM, it is possible to send messages by blocks of 47 characters maximum each. A big message will be automatically split in blocks of 47 characters, sent one after the other.
The proposed main frequency for EM is 7055 KHz (USB), and the other proposed frequencies are: 3576, 10142, 14078, 21085, 28100 (USB), 144620 KHz (FM).
Example of 3 test EM messages displayed on the specific panel (RX) of the EM
window and on the waterfall.
· Function "Ham calls with Multipsk"
· Addition of the "PKT" (or "DATA-L"), "PKT-R" (or "DATA-R") modulations in the "QRGs" (i.e. "Frequencies") window. This modification is associated with the "FREQUENCIES.TXT" file, where modes with their frequencies and modulations are specified.
· Thanks to Ralf (DO5RBB), the new http://multipsk.fr/ server is available.
The list of WEB sites associated with the "Traffic" window ("Traffic" button) is:
EPRIB/ELT/PLB + ARGOS http://multipsk.fr/A_EPIRB.php
GMDSS + ATIS http://multipsk.fr/A_GMDSS.php
ACARS (VHF) http://multipsk.fr/A_ACARS.php
HFDL (HF ACARS) http://multipsk.fr/A_HFDL.php
M10/M20, DFM, RS41, LMS6 http://multipsk.fr/A_RS.php (radiosondes)
“Ham calls with Multipsk” (« CQ ») http://multipsk.fr/A_MO.php
Note about translation of Multipsk.exe and Clock .exe: the 4.45.5 version of Multipsk has been translated to Spanish by Joachin (EB4Z), from French.