Hello to all, About S/N here are my measures:
Lowest S/N (125 bauds ARQ FAE in ALE): - 6.5 dB(- 8.5 dB with many repetitions) Lowest S/N (50 bauds ARQ FAE in ALE400): - 11.5 dB(- 13.5 dB with many repetitions) The tests have been done with 30 characters message. The Tony's tests, as far as I remember, were done with 63 characters message (which is more conservative, but the value must be about 3 dB pessimistic compared to 30 characters message). Here are two quick demonstration files, for the ones interested in this mode (with a previous RS ID it is easier to detect): a.. "ALE and ALE400 easy with Multipsk"(MS Word Doc, 1.1 MB) a.. "The ARQ FAE beacon easy with Multipsk" (MS Word Doc, 282 kB) 73 Patrick ----- Original Message ----- From: "Jose A. Amador" <ama...@electrica.cujae.edu.cu> To: <digitalradio@yahoogroups.com> Sent: Wednesday, May 27, 2009 6:25 PM Subject: Re: [digitalradio] PSK-ARQ versus ALE-400 >I wonder what kind of "investment" is required. > > It has as many points as possible in common with sound card modes and > only requires MultiPSK as terminal program. > > If I am not asking for a comparison between apples and oranges (I am not > entirely convinced right now... 8-) ), maybe Tony could devise some > measurements to compare them. > > 73, > > Jose, CO2JA > > --- > > Andy obrien wrote: > >> While I have seen how well ALE 400 works, I am not convinced that it >> is worth the effort to invest in activity due to the lack of other >> hams using the mode. While ALE400 make sense to me, I can't see hams, >> en masse , switching to it. I still think that a better option would >> be the increased development of NBEMS PSK and MFSK with ARQ as >> implemented in FLDIGI. While perhaps not as robust as ALE 400 FAE , >> it is far more likely to be used by hams if there is more publicity >> about NBEMS. >> >> Andy K3UK > > VI Conferencia Internacional de Energía Renovable, Ahorro de Energía y > Educación Energética > 9 - 12 de Junio 2009, Palacio de las Convenciones > ...Por una cultura energética sustentable > www.ciercuba.com > > > ------------------------------------ > > Announce your digital presence via our Interactive Sked Pages at > http://www.obriensweb.com/sked > > Recommended digital mode software: Winwarbler, FLDIGI, DM780, or Multipsk > Logging Software: DXKeeper or Ham Radio Deluxe. > > > > Yahoo! Groups Links > > > > >
