Frank, Here's a rundown of some of the more interesting and maybe offbeat things you can do with MultiPSK that you can't do in other programs:
Weak signal modes ----------------- There are a variety of interesting modes suitable for weak signal/QRP work. These include a modified version of PSK10. In tests with a channel simulator I have had decode down to -20db S/N. Of course in the real world Doppler would probably limit this to around -18dB S/N. PSKAM10, very slow but can work even further into the noise. "VOICE" an adapted weak signal mode derived from Olivia that is only 168Hz wide. Seems better than Olivia 8/250 and faster too. This mode also has an audio readout of the character using a voice synthesizer if desired (the idea being invented for blind hams). Automatic ID ------------ MultiPSK can send a waterfall picture (actually a type of Hellschreiber) with the name of the mode before transmission. It's possible to see this message in just about any other type of program running a waterfall. RS-ID. Automatic mode recognition and precise frequency tuning. This is another type of ID that is a unique Reed-Solomon MFSK sequence that is transmitted before the main transmission and allows the remote copy of MultiPSK (or PocketDigi now) to home in and choose the right mode automatically. This works down to around -14dB s/n and is extremely useful! Soundcard based ARQ ------------------- MIL-STD-188-141A implementations in normal wide bandwidth or narrow 400Hz bandwidth providing a Fast Acknowledged Exchange ARQ mode for semi-duplex QSO's or transferring emails & files. The ALE400 mode as you probably know appears to be a very effective mode for error free QSO's. PAX/PAX-2 similar idea but based on AX25 packet structure and features. MFSK modulation. Regular AX25 packet radio. Not a dumb terminal but a full implementation including an autoresponder, APRS (RX & TX) and messaging facility. Commercial Modes ---------------- Of interest to SWL's mainly perhaps. Decoding of DTMF, HF FAX (including false coloring for satellite pictures), GMDSS transmissions, VHF ACARS, SYNOP/SHIP messages and various other formats. Panoramic Decoders ------------------ Decode up to 23 different PSK31, RTTY or CW signals simultaneously. PC Clock Synchronization ------------------------ Synchronize your PC clock to WWV, CHU etc in real time. Experimental Picture Transmission --------------------------------- Using either narrowband MFSK16 SSTV or a simple digital transmission method in various modes. Probably not that useful but fun to try out. Filters ------- Various DSP filters for experimentation including a Binaural CW filter. Wide variety of modes --------------------- Many modes not found in other software. Miscellaneous ------------- Spectrum Analyzer Oscilloscope Signal analysis Works with SDR and DSB receivers TCP/IP control TCP/IP POP3 & SMTP functions for working with your mail program Programming facility - simple language for special applications. Really there is so much in this program to have fun with! I am sure I have not covered everything in this list. 73, Sholto KE7HPV. Tooner wrote: > --- In [email protected], Sholto Fisher <[EMAIL PROTECTED]> wrote: >> For me personally MultiPSK allows me to enjoy ham radio my way. I like >> to experiment and be on the edge of new digimode technology and >> concepts. The learning curve keeps my mind sharp. > > I can appreciate that! Simon, with HRD, is similar in his approaches. > Good support, constant development and new modes, and takes into > consideration user opinions. He's added many features based upon for > what a forum like this cheers. > > Meanwhile, as a digimode fan, be sure to check out Roland Prosch's > "Technical Handbook for Radio Monitoring". It's a book with the best > coverage of digital modes I've ever seen. Introduced me to HUNDREDS > of digital modes I've never know. Then again, I've only been a ham > for a short while! 8) > > What are some of your favorite, less common modes Sholto? > > Frank, K2NCC > >
