[Elecraft] Using K3 with N1MM and MMTTY

[Wes Stewart]

Or you can just use AFSK + VOX and not worry about it.


--- On Wed, 2/9/11, Joe Subich, W4TV <lists at subich.com> wrote:

> From: Joe Subich, W4TV <lists at subich.com>
> Subject: Re: [Elecraft] Using K3 with N1MM and MMTTY
> To: "Joe" <joe at k2uf.com>, "Elecraft Reflector" <elecraft at mailman.qth.net>
> Date: Wednesday, February 9, 2011, 10:47 PM
> 
>  > How do you K3/N1MM users interface the MMTTY engine?
> 
> Assuming you are using FSK (FSK D), you need two serial
> ports.  One
> port is used by N1MM Logger for radio control (connected to
> the K3
> RS-232 port),  The other port is the N1MM Logger
> "Digital" port -
> the TxD line drives an open collector transistor connected
> to the
> FSK input on the K3 ACC jack and the RTS line drives an
> open collector
> transistor connected to the PTT line on the K3 ACC jack.
> 
> If you are using AFSK A, you can dispense with the
> "Digital" port
> completely and allow N1MM Logger to control PTT using the
> RTS line
> on the k3 RS-232 port (PTT - KEY => rts-OFF or
> rts,dtr).  In that
> case you would connect the computer Line Out to the K3 Line
> In
> and the K3 Line Out to the computer Line In with a pair of
> audio
> cables (or a more capable/advanced interface).
> 
> 73,
> 
>     ... Joe, W4TV
> 
> 
> On 2/10/2011 12:08 AM, Joe wrote:
> > I also asked this question on the N1MM
> reflector.  I am using N1MM COM1 port
> > to control the K3.  I have N1MM starting the
> MMTTY engine but it cannot key
> > the radio because the COM1 port is already being used
> to control the radio.
> > How do you K3/N1MM users interface the MMTTY engine?
> >
> > Thanks
> >
> > 73 Joe K2UF
> >
> > No trees were harmed in the sending of this e-mail;
> however, many electrons
> > were inconvenienced.
> >
> >
> >
> >
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