Pactor and Amtor use ARQ mode.
Because of this timing a computer WILL NOT
keep up with the TNC equipped station.
I did run some test about 3 years ago and the
computer only station on a AMTOR / PACTOR link
could only do about 43% of what the TNC equipped
station did.


At 05:35 PM 8/26/2006, you wrote:
>On Tue, 15 Aug 2006 15:10:49 -0500, John Becker <[EMAIL PROTECTED]> wrote:
>
> >
> >If you are going to operate Amtor or Pactor ARQ mode
> >you will be better with a TNC. Otherwise for the sound card
> >mode you will not need it.
>
>ok, IC736  running the rig with HRD from an Intel  Pent 4 via CI-V interface
>USB cable on MARS.
>running Pactor, do I need a TNC?
>WHAT IS A TNC exactly.  iow, WHAT does it do?
>Why can I not simply load the Pactor software into the PC along with my
>HRDeluxe software??
>If I need the TNC, how do I hook it up to work with HRD and CI-V??



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