|
New release (3.14) of MULTIPSK RX only: AMTOR ARQ/NAVTEX/RTTY 100/ DSP: Filters + CW binaural reception PSK Panoramic (BPSK31/BPSK63/PSKFEC31): RX 23 channels simultaneously CW Panoramic: RX 8 or 23 channels simultaneously RTTY Panoramic: RX 8 RTTY QSO decoded simultaneously on 22 channels Programmation of Multipsk reception CLOCK 1.5.2 (FRANCE-INTER, DCF77, HBG, RUGBY, WWVB, WWV, WWVH, GPS) Hello to all Ham and SWL, The new release of MULTIPSK (3.14) is in my Web site (http://f6cte.free.fr).
Another mirror site isTerry's: http://www.hamsoft.co.uk/ Multispk associated to Clock are freeware programs but with functions submitted to a licence (by user key). The main modifications of MULTIPSK 3.14 is the following: 1) possibility to code/decode the FM Hell 105 bauds mode. See specifications further on. 2) possibility to code/decode the BPSK125 / QPSK125 mode. See specifications further on. 3) function of Morse decoding of weak signals (QRP) 4) possibility to key the XCVR from a PC under Windows XP, through serial port, 5) Secondary channel for BPSK63-125 / QPSK63-125 modes. See specifications of PSK125 further on. 6) Olivia: improvement of the decoding, the automatic tuning and the AFC, 7) Pax/Pax2: improvement of the decoding and the AFC, The modification 3 is a function submitted to a licence. Note: all the modifications are given in the bottom of the Configuration screen. For information, for all the Multipsk exotic modes (PSKFEC31, PSK10, PSKAM, PSK63F, PSK220F (+DIGISSTV), CCW-FSK, MFSK8, THROBX, DominoF, DominoEX, PAX, CHIP...), I propose the QRP frequency: 14075 Khz USB (AF around 1000 Hz), at 17h00 UTC. FM Hell specifications FM Hell is a Hellschreiber mode. Createad by : Nino Porcino (IZ8BLY) and Murray Greenman (ZL1BPU) Description : FM Hell is a Hellschreiber mode. Createad by : Nino Porcino (IZ8BLY) and Murray Greenman (ZL1BPU) Description : Baud rate : 105 or 245 Matrix : for FM HELL 105 baudsÂ…height: 6 pixels and width: 7 pixels for FM HELL 245 baudsÂ…height: 7 pixels and width: 14 pixels Speed : 25 wpm Modulation : MSK with a "minimum" shift between tones of 122.5 Hz (at 245 bauds). The white is at the upper frequency and the black at the lower one. Receive mode : USB Character set : all ASCII printable characters except small letters, carriage return (+ line feed) and error correction character. The used font (FeldHell) is derived from the font of G3PLX (Peter Martinez), Shape of pulse : rectangular Bandwidth : about 130 Hz for 105 bauds and 300 Hz for 245 bauds, Synchronization: no need, each column is displayed vertically 2 times (but transmitted once) Pmean/Ppeak : 1 Lowest S/N : - 10 dB Note: the Multipsk "105 bauds" is not a "105 bauds" as described previously. It is, in fact, a mode similar to the 245 bauds and using the same characters (7 x 14 pixels). The difference lies in the frequency variation which is not the MSK one (i.e. +/- 61,25 Hz) but it is equal to 61,25*105/245 Hz. When receiving, it comes to the same (modes are compatible). In the other hand, this solution has the advantage to be able to use 7x14 pixels characters and so to keep on with a good definition. PSK125 specifications Creation: in 2003 Description : Baud rate : 125 Speed : 148 wpm in capital letters and 204 wpm in small letters (average) Bandwidth : about 320 Hz, Drift tolerance : 120 Hz/min in BPSK125 and 40 Hz/min in QPSK125 (depending on level) Lowest S/N : -5 dB Note: for the remainder, except the secondary channel, the characteristics are identical to the ones of BPSK31/QPSK31 modes. The "secondary channel" specific to Multipsk There are two sets of characters among 256 ASCII and ANSI characters: * a first set of 193 characters (the primary table) is used for the current
exchanges, The idling character, if nothing can be sent, is the character CHR(0). This secondary channel is interesting because the flow of characters in these modes is very superior to the typing speed. It will permit to Hams listening to rapidly have essential information between typed characters. See the document "Characters to manage for secondary text on DominoEX FEC, PSK63 and PSK125.doc" on my WEB site ("Specifications") for details. Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org Other areas of interest: The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/ DigiPol: http://groups.yahoo.com/group/Digipol (band plan policy discussion)
SPONSORED LINKS
YAHOO! GROUPS LINKS
|
