Kantronics built dual speed TNCs with a provision to prevent the problem Eric 
describes.  It would allow you to interface both speeds to one radio and a 
parameter can be set to prevent them from both trying to transmit at the same 
time.
   
  73 - Jim  W5ZIT

Eric Lemmon <[EMAIL PROTECTED]> wrote:
          Dave,

I'd like to see that article, too. Connecting two TNCs to one radio is
easy, but allocating the RX and TX functions between two devices is hardly a
trivial matter. Unless a buffer is used to store outbound data while the
radio is busy receiving data on the other TNC, collisions will occur
regularly. This should be interesting! Is this a good idea?

73, Eric Lemmon WB6FLY

-----Original Message-----
From: [email protected]
[mailto:[EMAIL PROTECTED] On Behalf Of
[EMAIL PROTECTED]
Sent: Wednesday, August 01, 2007 4:51 PM
To: [email protected]
Subject: [Repeater-Builder] Connecting Multiple TNCs

Hi all

Some time ago, I saw an article on how to connect two TNCs to a single
radio. Does anyone remember such an article an either have a copy or point
me to a site where I can download it?

Thanks,

Dave, WA6IFI



         

       
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