I get a similar response from my AMD 233MHz machine running Win 98SE.
When the computer boots, I get my LPT1 PTT line asserted. This means
pin 16 is high which drives the base circuit of the transistor and is
probably the .75v you are seeing at the base... during that condition,
PTT has been turned on. If you measure the voltage at pin 16 of LPT it
will probably be above 2V during this time.
I have tried to find another program (like trying to print) that will
regain control of that LPT line after I boot the machine but the only
thing that works here (so far) is to start WL into a "dummy" contest.
It seems to simply initialize that port (puts the LPT line to a logic
0)... and it stays there even if I quit WL. That frees up the PTT line
and I can get on with whatever I was doing with other software etc.
The actual computer boot causes the LPT problem here... not WL. I use
WL to clear pin 16 then either run a contest or shut WL down and do
other things and the rig is no longer "locked on". Since the LPT line
is actually being driven high, a 2K resistor to ground will not solve
this particular problem.
George .. W1ZT
----- Original Message -----
From: "Steve Baron - KB3MM" <SteveBaron@starlinx.com>
To: "Jim McDonald" <n7us@arrl.net>; "Donald Eriksen"
<don.wsixffh@verizon.net>; <writelog@contesting.com>
Sent: Friday, May 10, 2002 1:59 AM
Subject: Re: [WriteLog] PTT on CW port RTS
> OK.
>
> Wonder what signal is on that PIN.
> Also 0.75 V 'sounds funny'
>
>
> ----- Original Message -----
> From: "Jim McDonald" <n7us@arrl.net>
> To: "Donald Eriksen" <don.wsixffh@verizon.net>;
<writelog@contesting.com>;
> "Steve Baron - KB3MM" <SteveBaron@starlinx.com>
> Sent: Friday, May 10, 2002 03:43
> Subject: Re: [WriteLog] PTT on CW port RTS
>
>
> > Same thing happens with my RIGBlaster Plus set up for FSK RTTY with
MMTTY.
> >
> > Jim N7US
> >
> >
> > ----- Original Message -----
> > From: "Donald Eriksen" <don.wsixffh@verizon.net>
> > To: <writelog@contesting.com>; "Steve Baron - KB3MM"
> > <SteveBaron@StarLinX.com>
> > Sent: Thursday, May 09, 2002 8:14 PM
> > Subject: Re: [WriteLog] PTT on CW port RTS
> >
> >
> > Thanks to the several who responded with ideas. I attached Steve's
only
> > because he suggested that it didn't sound like Writelog that caused
the
> > problem. Turns out you're right, Steve, but it does fix it!
> >
> > Here's my setup: I have a switching transistor with the base to
parallel
> > port pin 16 through a 1K resistor. It works fine for PTT once the
initial
> > rig turn-on problem is "fixed".
> >
> > I put a scope probe on the base, and re-booted the computer and
during
> boot,
> > I see about .75 volts to ground that remains there until I start WL
and
> turn
> > off the PTT on CW RTS. Then the line goes to zero. Just for fun, I
can
> check
> > the box again and I see the line go to the .75 volts for a fraction
of a
> > second, then back low.
> >
> > So, WL somehow pulls that line low and the rig is happy. I'm
wondering if
> > that voltage can be held low with a light load (maybe 2K ohms or
so).
> That's
> > my next trial.
> >
> > I'll publish the results, of course.
> >
> > Thanks to all, Don W6FFH
> >
> > ----- Original Message -----
> > From: "Steve Baron - KB3MM" <SteveBaron@StarLinX.com>
> > To: "Donald Eriksen" <don.wsixffh@verizon.net>
> > Sent: Thursday, May 09, 2002 2:05 PM
> > Subject: Re: [WriteLog] PTT on CW port RTS
> >
> >
> > >
> > > ----- Original Message -----
> > > From: "Donald Eriksen" <don.wsixffh@verizon.net>
> > > To: <writelog@contesting.com>
> > > Sent: Thursday, May 09, 2002 17:06
> > > Subject: [WriteLog] PTT on CW port RTS
> > >
> > >
> > > > I would like to know how to disable the "All mode PTT on CW port
RTS"
> > > option
> > > > in the Setup/Ports menu. The box always comes up checked, I
un-check
> it,
> > > > save the configuration and exit WL. The next time I start WL and
check
> > the
> > > > menu, it's checked again. I suspect it's an .ini file option,
but I'll
> > be
> > > > darned if I can find it or any reference to it anywhere.
> > >
> > > I would be willing to bet that what you are seeing is the default
for a
> > > 'new' contest. If you clear it and save a contest and then
re-start WL
> > and
> > > re-open that contest, is the flag set or
> > > cleared?
> > >
> > > >
> > > > The problem is that it causes my FT1000D to come up in transmit
when I
> > > turn
> > > > the rig on (with Writelog not running). I have to run WL,
uncheck the
> > box,
> > > > save it and then things are fine untill the next time I turn the
rig
> on
> > > > without WL running.
> > >
> > > I do not see anyway that a WL option could possibly key your rig
when
> > > WL is not running. You have something else going on there.
> > >
> > > Why not post the brand, model number, etc. of the serial port and
> > > details on the interface you are using.
> > >
> > > >
> > > > Any help anyone? TIA
> > > >
> > > > Don W6FFH
> > > > don.wsixffh@verizon.net
> > > >
> > > >
> > > > _______________________________________________
> > > > WriteLog mailing list
> > > > WriteLog@contesting.com
> > > > http://lists.contesting.com/mailman/listinfo/writelog
> > > >
> > >
> >
> > _______________________________________________
> > WriteLog mailing list
> > WriteLog@contesting.com
> > http://lists.contesting.com/mailman/listinfo/writelog
> >
> >
> > _______________________________________________
> > WriteLog mailing list
> > WriteLog@contesting.com
> > http://lists.contesting.com/mailman/listinfo/writelog
> >
>
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