23973RE: [aprsisce] Baycom or BP-1 Interface??
- Sep 26, 2013In my packet years i used it and it was great now it has been recycled on APRS.will see if i can start it now with APRSISthanks for your comments even if you loose me at some point too ,,gervais
Date: Thu, 26 Sep 2013 00:15:04 -0700
Subject: Re: [aprsisce] Baycom or BP-1 Interface??
I used one - built it myself - for a couple of years, only retiring it when I grabbed a "real" TNC at a ham event. That was about the same time that I transitioned off Windows, um, 95? to something more modern (where the software stopped working so well).
Baycom is just a modem, providing a serial bit stream of what the modem hears from the radio. If I recall, the bit stream is NOT broken into flag-removed bytes with start and stop bits (normal serial I/O), so you can't simply plug it into a normal serial port. The Baycom interfaces would connect the serial data stream into one of the modem control lines, as a 1-bit software-visible register. The PC's software would poll the control line, timing the bit transitions and reconstructing essentially a KISS byte stream of it, and then layering a TNC on top of that. I never found that the data stream was accessible independent of the TNC, nor that there were any recent (last 15 years) systems that used it. Making the hardware usable in a modern (last 15 years) APRS network would be interesting.
James Ewen wrote:On Wed, Sep 25, 2013 at 8:14 PM, Gervais Fillion <ve2ckn2@...> wrote:
> i have an Igate uneder Uiview that is using an Baycom as interface ,not a
The Baycom provides basic I/O if I recall... does it do KISS?
> Can APRSIS run with such a device,
If it does KISS, APRSISCE/32 can use it.
> i think i am using AGWPE also,,as connection betwen radio and software.
APRSISCE/32 supports AGWPE, so if you are using AGWPE, you can use
APRSISCE/32 with it.
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