I have never had any problems keying CW from a serial COM
port using WriteLog. I use it for mainly for everyday CW work and
have only used it in a handful of contests, but no problems incurred
so far.
It is very easy to do. There is a simple diagram showing how
to do CW, RTTY FSK and/or PTT from the same COM port
on my personal website at http://www.aa5au.com/rttyinterface.html.
If you have computer control of your radio, you don't need
PTT.
One thing to note and I don't know if this affected LPT keying,
but you may have to extend the delay between PTT and CW keying.
The first dit or dah was not sent before I extended the delay
from 10 ms to 50 ms. This is done from the Ports setup screen.
I probably could have gotten away with something lower than 50 ms
but I just tried 50 ms and it worked so stayed with it.
73, Don AA5AU
----- Original Message -----
From: "Garry Shapiro" <garry@ni6t.com>
To: "Carsten Steinhöfel" <carsten.steinhoefel@web.de>
Cc: "Mailingliste Writelog" <writelog@contesting.com>
Sent: Tuesday, May 28, 2002 12:57 PM
Subject: RE: [WriteLog] Erratic CW
> DL1EFD asked the question I asked myself after sending the summary last
> night and was staring at the list of printer drivers running in the
> background.
>
> I have six COM ports, having added two PCI cards, and several of these ports
> are currently available. Does the group think CW problems are less likely if
> a serial port is used?
>
> Garry, NI6T
>
> > > ...
> > Background processes could sure be a problem, especially the printer etc.
> > drivers which would obviously access the LPT port as well (and with higher
> > priority then Writelog). Have you thought about using a COM port for CW?
> > I have CW on the same port as radio control and never had erratic CW (on
> > a 400MHz machine).
> >
> > 73 Carsten, DL1EFD
> >
> > _______________________________________________
> > WriteLog mailing list
> > WriteLog@contesting.com
> > http://lists.contesting.com/mailman/listinfo/writelog
> >
>
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>
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