Well, I do not have a distinct characterization of Olivia submodes. 8/500 seems to be fair enough, not too greedy on bandwidth and works where other modes (not Olivia) fail.
I have used the most common available on MultiPSK, that is, 8/250, 8/500, and 16/500. Ocassionally, 32/1000, or even 2/125 on a couple of QSO's using MixW. I felt 2/125 a bit better than RTTY, but made no serious comparisons, and I feel (maybe a bit of a gut feeling) that Olivia with just two tones defeats most of its adventages. 73, Jose, CO2JA --- Rick wrote: > Have you found particular combinations of Olivia BW and tones that seem > to work the best for various conditions? > > My frustration with Olivia is that it is impractically slow for keyboard > chats unless you use the higher baud speeds to get the wpm to at least > 30 wpm. But then it does not seem to work as well. > > But if the choice was some communication instead of no communication, > there would be times that it would be a good choice. My main interest is > in using sound card modes that work well for emergency communication > with lower power and lesser quality antennas, particularly on HF NVIS. > > 73, > > Rick, KV9U > > Jose Amador wrote: >> As all differentially encoded modulations, it has a price, in the form >> of burst errors following a wrong bit. >> >> For me, Olivia is far better than any Domino EX modes, including Domino >> with FEC.With FEC it is more robust, >> but becomes slower than Olivia, without reaching the same degree of >> robustness. It is my impression with actual >> tests on the air. > __________________________________________ Participe en Universidad 2008. 11 al 15 de febrero del 2008. Palacio de las Convenciones, Ciudad de la Habana, Cuba http://www.universidad2008.cu
