--- In digitalradio@yahoogroups.com, "Jose A. Amador" <[EMAIL PROTECTED]> wrote: > > > I used TERMAN93 with a homebrew FSK modem and my PC in 1997 was a > 386 at > 25 MHz with 20 MB RAM. I had to tweak the too simple dot clock > oscillator to shift it from 14.312 MHz to the correct frequency of > 14.318181....MHz. > > I never knew about G4BMK Multi. But My PTC-II does that and more, > too. > And coincidentally, mine rarely goes to 3600, usually the highest > speed > attained is 2700. > > Jose, CO2JA
Hi Jose, Those were the days Jose, when we had to make our own TERMINAL UNITS for RTTY. I really started on RTTY in 1984 with my ZX-81 personal computer, G4IDE RTTY EPROM, a Homemade Terminal Unit, an 81 LED Matrix as an RTTY TUNING SCOPE where I could see the MARK and SPACE TUNING CROSS, a GREEN MONITOR and my Homemade 5 watts SSB transmitter with a YAESU FRG-7700 receiver. The aerials (20-10 meters 2 element CUBICAL QUAD and 80-10 dipole) were homemade too. I made thousands of QSOs this way. After a few years I made a better TERMINAL UNIT and used my DOS computer with the BMK-Multi program (by G4BMK) which supported RTTY, AMTOR and PACTOR 1. They used to call it PACTOR these days. Great setup. Had many QSOs with it. I still have the above TERMINAL UNITS, ZX-81, and DOS PC. Then in 1998 I got a PTC-II and shortly after a PTC-IIe for my portable HF operations. I use my PTC-IIe with my FT-817 or RACAL PRM- 4031 or FT897D. I use PLUSTERM 2.3 and a small DOS palmtop HP-200LX with my PTC-IIe and FT-817 or RACAL when I go for a mountain hike. Extremely light setup. The PTC-IIe controller in PACTOR mode keeps me in QSO even when I cannot hear the other guy's tones and error free because of the ARQ and really flies when I have good signals. I am extremely happy with the way PACTOR 2 & 3 operate and also with all the other modes my 2 PTC-II controllers support, being RTTY, PSK31, AMTOR, PACTOR, NAVTEX, FAX, SSTV. I can even exchange DIGITAL SSTV pictures in PACTOR 3 mode and error free. Of course I also like SSTV (I'm not mad about DXing and card collecting) and I have built my own Hardware SSTV controller, not with a P7 cathode ray tube but with TTLs, RAMS, etc, but this is analogue SSTV and I am not sure if it is in topic with this group since analogue SSTV is not a digital mode, despite of what other might say. Thanks for letting me know your experiences with PACTOR 3. 73 de Demetre SV1UY
