It is known laptop problem, due to low voltages... I got LPT interface with
two 4N32 optocouplers which works excellently on desktop PC but wont key
transmitter on laptop. LPT interface with two plain transistors works OK,
tho'!
73! Mirko, S57AD
----- Original Message -----
From: "Philipp" <phil.loretz@bluewin.ch>
To: <trlog@contesting.com>
Sent: Friday, April 15, 2005 9:46 PM
Subject: [Trlog] CW keying on Toshiba
> Hi all
>
> I am trying to set up a Toshiba laptop 300 CDS for the Helvetia Contest.
> TR is running but it doesn't key the transceiver.
>
> I have chosen the parallel port and the cfg is okay.
> The same interface works okay with my other laptop Compaq.
>
> First I thought the parallel port is broken, but I can use my printer
using
> the same port without any problems.
>
> Is there a known Toshiba problem?
> If yes, how can I fix it?
> There aren't any other Pcs left in my shack running Windows 98...
>
> 73 Phil, HB9FMU
>
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