Pour les francophones: la version française 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 (4.17) is on my Web site (http://f6cte.free.fr). The main mirror site is Earl's, N8KBR: http://www.eqth.info/multipsk/index.html (click on "United States Download Site"). Another mirror site isTerry's: http://g90swl.co.uk/multipsk/ Multipsk associated to Clock are freeware programs but with functions submitted to a licence (by user key). The main modifications of MULTIPSK 4.17 are the following: 1) Decoding of the COQUELET modes (8 and 13) These modes are used in HF for professional transmissions. 2 sorts of Coquelet exist: the "8 tones" (still used) and the "13 tones" (perhaps still used). This mode is available for licencied copies, only (otherwise, the decoding is stopped after 5 minutes). See specifications further on. 2) Interface with PSKReporter Principle: the SWL or Ham monitoring transmits received data to a PSKreporter WEB server, either manually or automatically (by Multipsk in direct or panoramic reception). This server gathers reception records of any digital mode activity and then make those records available, in near realtime, to interested parties (typically the amateur who initiates the communication). Stations are located on a world map. All text modes can be reported (included JT65, ALE and ALE400 soundings and ARQ FAE calls). However in PACKET/PAX/PAX2, the option (available clicking on the "Options" button) "Only the information on RX and TX frames" must be unchecked to be able to report to PSKReporter. The "Call ID" can also be reported. For configuration and help about PSKReporter, click on "PSKReporter" located on the menu top bar. 3) New macros: - <COM:command> permits to send a serial command through the selected main COM port ("Serial port" menu). Through this command, it is possible to control such equipment as TNC or DSP. Attention: Multipsk gives the possibility to send a command through the serial port but this one must be determined by the user. See help for details. 4) Improvements Possibility to do a callsign look-up in DXKeeper, Slight improvement of the 4285 and 110A decoding and SELCAL display, Partial decoding of the CCIR 493-4 Selcall (Australian Selcall) mode. It is an option of the GMDSS DSC mode, Timestamp on each line (for versions under licence): a timestamp (<12:03:51> for example), will be added at the beginning of each new line for all text modes (configuration in the "Options" menu of the "RX/TX" screen), Possibility to control a TNC (or another exterior equipement) with COM and EXEC macros in 4 phases: TNC initialization, at RX to TX switchover, at TX to RX switchover, at the TNC end of service (configuration in the "Options" menu of the "RX/TX" screen), Possibility of QSO recording in a TCP/IP client logbook (configuration in "Your logbook" of the "Configuration" screen and with the "TCP/IP" button of the "RX/TX" screen), Digitalk (thanks to Skip KH6TY), through a TCP/IP link with Multipsk, permits to pronounce (in an English way) all the decoded text. It is aimed to blind Hams and SWL (configuration in the "Options" menu of the "RX/TX" screen). The PC must be a XP. For blind Hams and SWL, possibility to search transmissions (PSK31, RTTY...) on the waterfall with the "<--" and "-->" keys (configuration in the "Options" menu of the "RX/TX" screen), Possibility of pause of the text transmission, by double-clicking on the transmission window (second one), then resumption with a simple-clicking, New function "Auto RX" to switch automatically in reception as soon as the transmission buffer is empty (for Hellschreiber mainly, but also for PSK31...), Colors for the panoramic (characters and background) can be freely chosen ("Fonts" button), Improvement of the selection of the modes detected by RS ID, SdR: possibility to transmit in base band and to select one among 12 HF frequencies. Note about translation of Multipsk.exe and Clock .exe: the 4.16 version of Multipsk/Clock has been completly translated to Spanish by Joachin (EA4ZB), from French. The translation file is on my Web site (http://f6cte.free.fr/Translation_files.htm). Coquelet specifications: Created by : ACEC in the 1950s years. These modes are used in HF for professional transmissions. 2 sorts of Coquelet exist: the "8 tones" (still used) and the "13 tones" (perhaps still used). Baud rate : 13.33 and 26.67 for Coquelet 8, 13.33 and 20 for Coquelet13 Speed : 66 or 133 wpm for the Coquelet 8, 66 or 100 mpm for the Coquelet13 Modulation for Coquelet8: MFSK 8 tones. The first tone (one among the 8 tones) defines the bits 3,4 and 5. The second tone (one among the tones 5, 6, 7, 8) defines the bits 1 and 2. The idle sequence switches from tone 8 to 1, then from tone 1 to tone 8, etc... Modulation for Coquelet13: MFSK 13 tones. The first tone (one among the 8 first tones) defines the bits 3,4 and 5. The second tone (one among the tones 10 to 13) defines the bits 1 and 2. The tone 9 is used to idle. Reception mode: only one side (USB or LSB), USB is recommended Character set : ITA2 (as RTTY) Shape of pulse : rectangular Space between tones :26.67 in Coquelet8 et 30 Hz in Coquelet13 , Bandwidth : 213 Hz in Coquelet8 and 390 Hz in Coquelet13 Demodulation : non-coherent, Synchronization: automatic on signal Correction code: no Convolution code: no Interleaving : no Automatic Frequency Correction: +/- 5 Hz, Drift tolerance : between 10 and 20 Hz/mn according to signal-to-noise ratio, Pmean/Ppeak: 1 Lowest S/N : -10 dB for Coquelet8 at 13.33 baud, -7 dB for Coquelet8 at 26.67 baud, -9 dB for Coquelet13 at 13.33 baud, -7 dB for Coquelet13 at 20 baud 73 Patrick
