[WriteLog] Re: PI4COM need help with CW problems

dl6jz at t-online.de dl6jz at t-online.de
Wed Jan 29 08:43:27 EST 2003

Hi Ronald,

I have the same problem with 2 computers and CW through LPT1: also.

Both computers are faster than 1 GHz, have 192/256 MB RAM and Win2000
pro. The first produces a very fine CW code through LPT1:. The code
which is generated by the second computer is stuttering. And that
behaviour does not depend on additional running task.

My work around for the second computer was: CW via COM-port. That works
very fine since it isn't a solution!

But I do not know why? Is there someone with an explanation?

73 + 55
Wolf, DL6JZ

Ronald Stuy, PA3EWP wrote:
> Hello,
> The last 2 weeks I am busy to get all the networked
> multi/multi PC's ready
> for the upcoming PACC contest at PI4COM.
> I am working now on a PC which give my problems in CW.
> We use the LPT1 port for CW (just a normal CT cable).
> I think there is a timing problem in the computer.
> When transmitting some letters or figures, they are
> totally disturbed (no CW
> at all hi).
> I am working with W98 second edition (including the
> latest patches).
> The hardware is a Tulip Vision Line P5/166 64 Mb memory.
> There is an internal network card available.
> I disabled all the hardware that I don't use (like USB
> and second COM-port).
> I changed the LPT1 port from output only ==> ECP ==>
> Bi-directional.
> In the writelog.ini I put the line: LPT1:0x378 (the same
> port as in the
> BIOS).
> The virusscanner is disabled.
> So there is nearly no difference at all changing the
> parameters.
> All the other PC's worked fine (even they are slower than
> this one).
> I hope that someone has a good suggestion for me.
> Ronald Stuy, PA3EWP
> member:
> PI4COM (Contestgroup Oude Maas)
> http://www.qsl.net/pi4com
> LLDXT (Low Land DX-pedition Team)
> http://www.qsl.net/lldxt/index.html
> _______________________________________________
> WriteLog mailing list
> WriteLog at contesting.com
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