At 04:35 PM 2/1/2010, you wrote: > > >Rein PA0R wrote: > >> What I don't understand is why NOBODY uses the pskmail arq chat mode >> Why accept 5% error when you can have it 100% error free? > >Patrick's ALE-400 FAE ARQ is another mode that falls into this category Rein. >Like PSKMail, it sees little use as an ARQ chat mode. > >A nice thing about ARQ besides the error-free throughput, is that there's no >need wait for the other station to un-key in order to change the subject or >inject a comment. Patrick's use of FAE (Fast Acknowledgment Exchange) allows >for ACKS / NACKS every 6 to 7 seconds. > >Another advantage of ARQ is that it can check for errors that occur as the >band changes. With non-ARQ modes, data can be lost during long key downs and >the sending station has no way of knowing that. With ARQ, the constant >exchanges let the sending operator know if the data is getting through.
And I think the best is that it does away with the "hidden transmitter" since one side of the QSO is sending while the other is "ack'ing" at all times. AIN'T no guessing about " is the frequency busy " John W0JAB ARQ'ing since to 1970's
