You can use either the serial or parallel port according to the pin
configuration of either kind of port.
The circuit is well documented on the TR log site - and others.
Rather than an NPN device, an opto coupler is preferable owing to its
isolation of the input/output interfaces.
David W Wood
GUILDFORD PHYSIOTHERAPY AND SPORTS CLINIC
MATTHEWS HOUSE
85 EPSOM ROAD
GUILDFORD
SURREY GU1 3PA
T: 01483 575876 (APPOINTMENTS)
302691 (ALL OTHER INQUIRIES)
E: [log in to unmask]
W: http://tinyurl.com/5wptcp
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-----Original Message-----
From: For blind ham radio operators [mailto:[log in to unmask]]
On Behalf Of John Miller
Sent: Wednesday, May 14, 2008 10:24 PM
To: [log in to unmask]
Subject: Re: port keying - was - quick question on N3FJP logging software
I haven't seen any of them for sale, nor have I seen good plans to make one.
I'd have to go parallel port anyway since my serial ports are all full, I've
seen them but never good plans with out pictures, nor have I seen those
interfaces for sale anywhere. Otherwise, I'd probably try that.
----- Original Message -----
From: "Steve Forst" <[log in to unmask]>
To: <[log in to unmask]>
Sent: Wednesday, May 14, 2008 4:26 PM
Subject: Re: quick question on N3FJP logging software
> Unless your interface directly keys cw, you would be better off building
> or
> buying a simple 1 transistor interface to do the job. Usually built
> right
> into the shell of a db-9 plug that goes to the serial port of the pc and
> then plugs into the key jack of the rig. This also lets you take full
> advantage of the 2000's narrow cw filtering. Some guys use the audio to
> cw thing and there may be work arounds to narrow filtering on rx, but
> why
> bother doing things the hard way?
>
> ----- Original Message -----
> From: "John Miller" <[log in to unmask]>
> To: <[log in to unmask]>
> Sent: Wednesday, May 14, 2008 4:09 PM
> Subject: Re: quick question on N3FJP logging software
>
>
>>I was trying to use my audio interfaces, I haven't had a chance to make up
>> an interface like that yet, nor have I seen good plans for one. I have a
>> sound card interface and should be able to do it with that.
>> ----- Original Message -----
>> From: "Steve Forst" <[log in to unmask]>
>> To: <[log in to unmask]>
>> Sent: Wednesday, May 14, 2008 3:53 PM
>> Subject: Re: quick question on N3FJP logging software
>>
>>
>>> Are you running from a serial port to the key jack of the 2000? Or doing
>>> something else?
>>>
>>> ----- Original Message -----
>>> From: "John Miller" <[log in to unmask]>
>>> To: <[log in to unmask]>
>>> Sent: Wednesday, May 14, 2008 3:41 PM
>>> Subject: Re: quick question on N3FJP logging software
>>>
>>>
>>>>I still can't get CW to work with the computer, but I don't know.
>>>>Probably
>>>> something I'm doing wrong.
>>>
>>
>>
>
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