The issue is control over the operating system's scheduling
decisions. There are real-time versions of Linux that are comparable
in this dimension to the firmware running in a TNC; given sufficient
CPU horsepower, a Pactor-2 or Pactor-3 implementation on realtime
Linux is feasible.
The Windows scheduler cannot be adequately controlled for use timing-
critical applications; as a result, the response time requirements of
protocols like Pactor-2 and Pactor-3 cannot be guaranteed, no matter
how fast the CPU. Generating CW with consistent timing is a challenge
on this platform.
73,
Dave, AA6YQ
--- In digitalradio@yahoogroups.com, John Becker <[EMAIL PROTECTED]> wrote:
>
> It was on a linux system
> But that does not matter.
> The problem is EVERY time the computer "thinks"
> what do I need to do now - the timing is lost and so
> is the link.
>
> At 09:53 AM 8/27/2006, you wrote:
>
>
> >Have you tried it with an up-scale sound card on a
> >computer equipped with both a fast processor and a
> >lot of RAM?
> >
> >What was the interface between PC and rig? USB 1.0,
> >1.1, 2.0, Serial, Parallel, other?
> >
> >I am wondering if the rapidly improving PC hardware
> >may have solved the speed problem?
> >
> >Also, which OS did you test, please? Apple, the
> >MS version of windows (XP?), Linux?
> >
> >I am not questioning your observations just am curious
> >as to the testing context.
> >
> >--
> >
> >Thanks! & 73,
> >doc, KD4E
> >... somewhere in FL
> >URL: bibleseven (dot) com
> >
> >
> >Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org
> >
> >Other areas of interest:
> >
> >The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/
> >DigiPol: http://groups.yahoo.com/group/Digipol (band plan policy
discussion)
> >
> >
> >Yahoo! Groups Links
> >
> >
> >
> >
>
Need a Digital mode QSO? Connect to Telnet://cluster.dynalias.org
Other areas of interest:
The MixW Reflector : http://groups.yahoo.com/group/themixwgroup/
DigiPol: http://groups.yahoo.com/group/Digipol (band plan policy discussion)
Yahoo! Groups Links
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