[1000mp] Fw: CW Interfacing query

Tom Homewood [email protected]
Fri, 12 Jul 2002 08:10:49 -0400


You didn't mention the circuit you used. If you have a diode across the
output to to key jack I would check to see that it is not backwards.

Another possibility is a shorted transistor.

Pretty hard to trouble shoot with out the circuit. These guesses assume that
all the wiring connections are proper.

Tom, W1TO

----- Original Message -----
From: "Robert Webb" <[email protected]>
To: <[email protected]>
Sent: Friday, July 12, 2002 4:39 AM
Subject: [1000mp] Fw: CW Interfacing query


>
>
>
> > Hi Guys, wonder if you can help. I am running the 1000MP and using
> Writelog
> > to generate CW which i then want the MP to send for me, Simple eh. I
have
> > built an interface from the comport on the pc to the key jack using a
> > transistor, resistor, diode etc. Has anyone else tried this and how did
> you
> > get through the radio keying up as you plug the interface in. The
> interface
> > is presenting the radio with 0.6vdc, of course the key jack wants to see
> > 5vdc not to key. Anyone know what i have done wrong !!
> > Thanks for youre help, and by the way i have at some stage or another
had
> > all the faults we read abt here on the reflector( especially the display
> > issue) so its not just you guys over there Hi Hi, Cheers
> > Robert Webb
> > G0URR
> >
> >
> >
> >
> >
> >
> >
>
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