Walt, Give DominoEx-22 or DominoEX-16 a try. Speed will probably a litttle less than using Pactor-3. Running Emcpup live is pretty simple. You don't even need to know anything about Linux. Patrick includes all the Domino modes in Multipsk and you can try DominoEx under Windows, but without ARQ. When using ARQ, the throughput will be about half as much as without ARQ, but there will be no errors.
As Rein says, the big problem on HF is not S/N (on VHF it is S/N and multipath reflections), but QRN and QRM, so you might find that DominoEx works pretty well in the presence of QRN, but I have not had an opportunity to find out myself. The DominoEx website says that it has been optimized for NVIS propagation. NVIS antennas on both ends should help reduce the static noise level, since the takeoff angles of NVIS antennas are very high, but noise generally arrives at a low angle. I can demonstrate the difference here, since I have both NVIS and regular 80m antennas. I have found around 2 S-units of static noise reduction using the NVIS antenna. 73, Skip KH6TY > We do plan on using HD, NVIS antennas and data modes as long as they are > faster > than I can receive CW (about 15 WPM accurately. > > The noise level is what is so high after a hurricane...and it stays that > way for > 2-4 days. > > Walt/K5YFW
