Linux-Hams archive - September 1998: Re: YAM

Re: YAM

Jack Taylor (aoerpwzi.ykdby@publicis-usa.com)
Wed, 02 Sep 1998 10:12:35 -0700


Tom is your comment directed to the 1200 baud YAM application only, or does
it apply to 9k6 as well. According to one account posted, the 9k6
performance was comparable to that of the G3RUH modem. I've not tried
either one, so have no first-hand experience here.

73 de Jack

Thomas Sailer wrote:

> Uwe Krause wrote:
> >
> > Thomas Sailer wrote:
> > > It can't yet do 1.2k, but YAM can't do that terribly well either :-)
> > > For a Linux driver see baycom_epp.c
> > > </shameless plug>
> >
> > YAM works with 1200Bd.
> > A new Feature :-).
>
> Yes but have you looked at the hardware actually? The YAM FPGA
> only receives a "hardlimited" input signal. This in effect
> is a 1bit-A/D-Converter. While you can extract an AFSK signal
> from that, it isn't very robust. Don't think this can match
> a "proper" implementation.
>
> Tom