Hi all Hi Wolf,
I got the same problem N° 1, and Wolf after our mailing I change the
resistor value as you suggested me following your suggestion N°2.
To solve the first PTT problem I discovered that connecting PIN 1 of the
LPT port (it should be the STROBE pin) to the frame (Ground) of the LPT port
itself by a wire it works OK with Icom RTX. Don't ask me why but it looks
that on new LPT hardware there is a poor ground connection.
After this "lucky solution" I don't want to be responsable if you try and
burn something.....HIHI
I discovered it while taking some Voltage and current values using a
multimeter. Once I touched the PIN 1 with the contact of the multimeter WL
started to send CW and to convert radio from RX to TX. I think I was very
lucky.
I tryed this new configuration with 2 more laptop that before wouldn't work
and now they work fine.
I tested the cables for a while during LZ DX contest without any
inconvinient......
GL and 73's
Luca IK2NCJ
----- Original Message -----
From: <dl6jz@t-online.de>
To: <writelog@contesting.com>
Sent: Tuesday, November 19, 2002 9:10 AM
Subject: Re: [WriteLog] HELP: CW kying using LPT1
> Hello Tom,
>
> glad to meet you in this reflector.
>
> I am using an FT-1000MP also. Running WritLog on a Pentium 133 MHz with
> 64 MByte RAM and Win98SE.
>
> There were only two problems t osolve for me.
>
> 1. PTT: I found that it seems to be impossible to control the PTT of an
> FT-1000MP via the rig control. After the first dot the rig goes back to
> receive. (With Kenwood-radio the PTT-control via rig-control works very
> fine).
>
> 2. Some of the newer Com- and LPT-ports are not able to supply enough
> current for a cw-interface with optocoupler or transistor-interfaces
> with only 1 kOhm in the basis-line of the transistor.
>
> My solution: 1 interface for the LPT-port with 2 functions
>
> 1. PTT-control with a transistor with 4.7 kOhm in the Basis-line.
> 2. CW-Interface like described in the WriteLog-help file.
>
> I assume you are running Win9x an not WinNT/2000/XP.
> In the 2 case you have to run special software for contrlling the
> LPT-port because those operating systems don't allow the applications
> to use the LPT-port like DOS or Win9x.
>
> 73 + 55
> Wolf, DL6JZ
>
>
>
> Tom Wylie schrieb:
> > I am a new user, but my CW on LPT1 is very staccatto and
> > is clipping badly.
> >
> > The PC keyer works OK using another program.
> >
> > I am using an FT1000MP
> >
> > H e l p!
> >
> > Tom
> > GM4FDM
> >
> --------------------------------------------------------------------------
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> > ----
> > (("I love children - but I couldn't eat a whole one!"))
> >
> --------------------------------------------------------------------------
--
> > -----
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> >
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> >
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