Re: ax25 and direct sound card connection

[Gordon JC Pearce <gordonjcp@xxxxxxxx>]

On Fri, 2010-11-19 at 12:38 -0200, Eduardo wrote:
> Hi,
> 
> I have another fairly basic question. Before buying an actual radio, I
> thought I can get some know how about using ax25 by connecting two
> sound cards directly. Is that possible?
> 
> I mean to connect two linux boxes by their sound cards directly and
> use soundmodem (no radio between them)? Has anyone tried that? Can I
> just connect the mic of the box1 to the speaker of box2 and the other
> way around?

It certainly is possible.  You won't even need to worry about a PTT
line, either.  With a direct connection like that you ought to be able
to get at least 19.2kbps using G3RUH mode.  Using the mike and earpiece
sockets of unmodified walkie-talkies you will only be able to use
1200bps AFSK.

Gordon MM0YEQ

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