Bob Nielsen wrote:
>
> On Tue, 9 Mar 1999, Damian A Ivereigh wrote:
>
> >
> > I am looking at another modem manufacturer for HF operation: Halcomm
> > (http://www.halcomm.com/). Their modems natively use the CLOVER
> > protocol, but also have a "P-mode", which is claimed to be 100%
> > compatible with the PACTOR protocol. So hopefully one can kill two
> > birds with one stone. The external modem is around $400 and about $300
> > for the internal PC card.
> >
> > They too only have code for Windows, however as soon I can get hold of
> > some of these modems, I will be working on a packet driver for Linux.
>
> There are two versions of PACTOR, PACTOR-I and PACTOR-II. I recall from
> some QST articles that PACTOR-II had quite good performance. IIRC, CLOVER
> was a ways back and PACTOR-I was not quite as good as CLOVER.
>
> The problem here is that both PACTOR-II and CLOVER are proprietary
> protocols. I guess after using Linux for nearly five years I have a
> real problem with that (also APRS).
Yes I agree that they are proprietry and that doesn't make me happy
either, however I have not managed to find a non-proprietry one except
psk31, which is *very* slow and doesn't do much in the way of error
correction. The design goals are more suited to live QSO's, not batch
transfer of data, which is what I want.
I am interested that Thomas Sailer has produced a sound-card version
of PACTOR. I don't mind hacking around with the protocols in digital
land, but I am no good when it comes to signal processing. This might
do the trick. Jose, can you give me more details?
Damian
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