That may be true, but my experience has been nearly 100% with
hardware serial ports, either built into the computer itself, a port
replicator, or a Quatech PCMCIA 2-port serial card, and that
experience goes back to 2001 vintage T2x-series Thinkpads (which have
a single hardware serial port).
Older vintage XP based systems simple don't have the CPU power to
handle CPU based timing - particularly during disk access. The
new quad core (8 processing units) CPUs do much better with CPU
tasks which has moved the bottleneck to the USB system.
73,
... Joe, W4TV
On 2014-12-04 12:53 PM, Jim Brown wrote:
On Thu,12/4/2014 9:37 AM, Joe Subich, W4TV wrote:
Much of the USB related stuttering is caused by timing in the USB system.
That may be true, but my experience has been nearly 100% with hardware
serial ports, either built into the computer itself, a port replicator,
or a Quatech PCMCIA 2-port serial card, and that experience goes back to
2001 vintage T2x-series Thinkpads (which have a single hardware serial
port). One of them was my primary logging computer until about 2008. And
as Ed suggested, that's why I bought and built a Winkey USB.
73, Jim K9YC
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