On 11/27/2012 12:09 AM, [email protected] wrote:
Hi Guys,
I've been a happy K3 owner for aprx. 3 years. Regardless which CPU I use,
I've always had an occassional problem receiving the error message "VFO A
not responding". When this happens while "running" during a contest it
presents a serious problem as the computer and radio lock up for aprx. 30
seconds.
During this 3 year span, I've operated with a dozen different Windows XP
and Windows 7 computers, always using N1MM Logging Software. I've operated
from several different QTH's and have the same problem. I always connect
via a Serial Port regardless of which CPU I use and have not tried a USB to
Serial Adapter. During the past few months, this problem has really
increased, such as: during last weekends CQWW Test, I got the dreaded "VFO A
not
responding" message and computer lock-up at least once every hour. By the
way, I do not have a 2nd receiver in the K3 so I cannot say if I'd have
the same problem with VFO B.
I'd be grateful for ideas on how to eliminate the "VFO A not responding"
problem.
Thanks & 73,
Dick- K9OM
Just a guess, and a poor one because you have used multiple
computers, but what about RFI? Try reducing the baud rate down one
interval and/or putting a RF choke on the serial cable. It's not likely
that, but I can't think of anything else and it sure sounds like a
communications problem. Are you driving an amp?
73, Paul VE1DX
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