If messages to N recipients are converted to N messages to 1 
recipient, under what circumstances would a message transport layer 
require one-to-many transmission?

   73,

      Dave, AA6YQ

--- In digitalradio@yahoogroups.com, KV9U <[EMAIL PROTECTED]> wrote:
>
> Chris,
> 
> There are several amateur radio to e-mail systems available now and 
they 
> all use ARQ.
> 
> For sending a shared resource, such as is done all the time on 
SSTV, the 
> stations are often using WinDream or Hampal which allow you to send 
out 
> replacements for bad segments. It can be time consuming, but it 
will 
> allow for perfect copy on the receiving end without repeating the 
entire 
> data stream.
> 
> The timing issue for ARQ has been solved for the PC side. And most 
any 
> rig would be able to handle it easily. The one exception was Amtor 
and 
> that is pretty much obsolete as an ARQ mode as it only transmitted 
three 
> characters on each "chirp."
> 
> 73,
> 
> Rick, KV9U







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