Pete,
While your problem was a disconnected ground, I have found
that snap-on chokes usually are not the answer for RFI
problems. This is especially true at MF and HF. Use solid
toroids or beads such as those from Amidon. These most
definitely work.
73,
Bob AA0CY
-----Original Message-----
From: trlog-admin@contesting.com
[mailto:trlog-admin@contesting.com]On
Behalf Of Pete Smith
Sent: Saturday, May 04, 2002 1:44 AM
To: trlog@contesting.com
Subject: Re: [TRLog] TRLog Program Lockups
At 08:51 PM 5/3/02 -0600, Phil Goetz wrote:
>During various contests over the past few months, TRLog has
frozen up on
>me a couple of times. This has happened with no particular
set of
>circumstances nor keystrokes that I'm aware of. Since the
computer in
>the shack is very old, I've been inclined to blame it.
However, in a
>recent discussion with K5OT, he mentioned that the same
thing has
>happened to him a few times. The program just freezes, and
no amount of
>pounding on the escape key, Control-Break, or even the
time-honored
>three-finger salute (Cntl-Alt-Delete) makes any difference.
The only
>solution seems to be to turn off the computer and then turn
it back on.
>
>Has anybody else on the TR reflector had similar
experiences? If so,
>please advise when you first noticed the situation and
whether you've
>been able to identify anything that might have been the
cause.
I'm inclined to believe that it isn't TRLog itself, because
I haven't had
the problem over the past year in heavy contest use. I'd
suspect possibly
an AC power problem. I've noticed that my AC power in the
shack frequently
dips enough to cause my UPS to beep and cut in, even though
the lights
haven't dimmed visibly.
RFI's another possibility. Today, I was setting up RecAll
Pro to record
from the headphone jack on my SO2R box, when RecAll suddenly
went
nuts. Every time I'd try to record a CQ, after 5-10 seconds
it would crash
with a software error. I quickly discovered that the
problem was RF
entering the computer through the audio feed to the Line In
jack. I tried
1, then 2 snap-on chokes at the computer end of the circuit,
with many
turns of cable through them, and it still happened. Then I
discovered that
the ground had come disconnected from the case of the
computer. As soon as
I reconnected it, the program crashes ceased.
73, Pete N4ZR
Check out the World HF
Contest Station Database at
www.pvrc.org
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