Thank you Mirko
You were right, the interface I used had an optocoupler. Now we have tried
an LPT interface with a plain transistor.
Keying now okay.
73 Phil, HB9FMU
Am 16.4.2005 11:22 Uhr schrieb "Mirko Sibilja" unter <s57ad@amis.net>:
> 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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>> Trlog@contesting.com
>> http://lists.contesting.com/mailman/listinfo/trlog
>
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