On Dec 21, 2009, at 3:55 AM, Hal Murray wrote:
It doesn't take anything fancy. ntpd has a couple of drivers that
use the
standard audio stuff on a PC. 8K samples per second, alaw.
The IRIG driver works pretty well. I haven't tried the one for WWV.
I had WWV audio driver working in the late 90's using a Yaesu FT-840
and a SPARCstation 20 if I remember correctly. I remember trying it
on a SPARCstation LX, and it didn't have enough CPU. The problem
with the working configuration was that the DSP code consumed
virtually all the old SuperSPARC-II CPU's capacity. In Intel x86
terms, these were roughly equivalent to a pre-MMX Pentium 90, so a
modern system should fare much better.
de KC6OOM/5
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