Hi Andy What about ALE400 ARQ ? It is great for those who need a robust arq mode.
73 de LA5VA Steinar Andrew O'Brien wrote: > With the varying discussions about the performance of specific modes , and > the comments about lack of activity for some modes, I present the following > list of 5 modes the digital mode ham should have...and probably all you > really need. > > 1. PSK31 (and other variants up to PSK250) , plenty of activities both brief > and "rag chew" , activity 24 hours per day. Use PSKmail to send email if you > wish. Consider QPSK for tougher conditions . ARQ PSK available in FL-digi > for emcomm work (available for free via Winwarbler. FL-Digi , DM780, > Multipsk, Pocket PSK and MMVARI. > > 2. RTTY still DX to be had via this mode and contesting if you like contests > ((available for free via Winwarbler, FL-Digi , DM780, Multipsk, MMTTY, and > MMVARI. > > > 3. JT65A. If low power DXing is you thing, this is your mode. Brief > exchanges of signal reports and location, no "conversation" mode (available > for free via WSJT, Multipsk, and soon to be released JT65-HF) > > 4. Olivia , weak signal capable plus keyboard conversations.Wide and narrow > versions to vary with conditions ((available for free via FL-Digi , DM780, > Multipsk, ) > > > 5. Feld Hell. Good speed, surprising robust, a fair amount of activity, > easier on your duty cycle that other modes, not good after a couple of beers. > ((available for free via FL-Digi , DM780, Multipsk ) > > > That's it, all you need. Yes, I left out MFSK16 despite it being a good > mode. It is too "fusy" at times and most things you can do with MFSK16 ,you > can do with an Olivia variant. MT63 is effective but just too much of a > bandwidth hog, hardly any activity. If you don't want the super robust brief > exchanges of JT65A, you could substitute DominoEX but you could go a week > without hearing anyone else. MFTT at quarter speed seems useful, has promise. > > I won't count ALE as a specific "mode" but will still argue that all hams > should be ALE capable. Still a great concept. Pactor..well great at P3 but > costs too many Euros. The rest can be great fun, but if you want just five, > the above are what you need. > > Andy K3UK > > >
