[Elecraft] K3: Configuring N1MM to send CW

[W0MU Mike Fatchett]

To key cw you will need some type of keying circuitry.  You have to have a keying transistor to send CW.

 6.4 Setup up PTT−ing the rig/sending CW
Sending CW and PTT−ing the radio can be done three different ways.
Using the Parallel port
Add an interface to the parallel port, this can be a simple one transistor circuit (for
each pin one) but also a bought interface . More on this in the interfacing chapter. Pin
16 is used for PTT and pin 17 for CW, these are fixed values.
¨ 
Go to the Configurer and select the hardware tab.
à Select behind the LPT port to use the "CW/Other" selection box.
Select the 'Set' button and choose the right settings (CW−speed, PTT−delay
and the CW/Other port address).
à 
The CW/Other Port Address should be the same as used in you Windows
configuration.
à 
à Select the correct Radio/VFO setting (1, 2 or Both)
à Press OK
¨ 
¨ PTT and CW should work now.
· 
Using the Serial port
Add an interface to the serial port, this can be a simple one transistor circuit (for each
pin one) but also a bought interface . More on this in the interfacing chapter. Mostly
the RTS is used for PTT and DTR for CW.
¨ 
Go to the Configurer and select the hardware tab.
à Select behind the serial port to use the "CW/Other" selection box.
Select the 'Set' button and choose the right settings (CW−speed, PTT−delay
and the CW/Other port address).
à 
à Select the pin to use to PTT and CW.
The CW/Other Port Address should be the same as used in you Windows
configuration.
à 
à Select the correct Radio/VFO setting (1, 2 or Both)
When Winkey is used also select this setting. The baudrate etc. for Winkey is
fixed and set by the program.
à 
à Press OK
¨ 
¨ PTT and CW should work now.
· 
Using a USB port
¨ PTT via a USB port can not be done direct, a USB−to−serial converter is needed.
Not every Serial−to−USB can change the status of the RTS (and DTR) pins . So
check before you buy.
¨ 
¨ When this device is setup in Windows select the serial port used by it.
¨ Follow the steps for a serial port to set up for PTT−ing.


"A slip of the foot you may soon recover, but a slip of the tongue you may never get over." Ben Franklin
-----Original Message-----
From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces at mailman.qth.net] On Behalf Of Julius Fazekas n2wn
Sent: Monday, February 16, 2009 9:24 AM
To: elecraft at mailman.qth.net
Subject: Re: [Elecraft] K3: Configuring N1MM to send CW


Bill,

Make sure the settings in your K3 match what you're telling N1MM to do. When I've run into such a problem it was due to a mismatch. 

I think my K3 is set DTR-RTS (not in front of the radio, so don't take this as gospel).

Crank down the power, or go to test mode. It will save you from ummm any unfortunate transmissions.

I can send more details when I get home if you need them. GL in the 'test!

Cheers,
Julius
n2wn


Bill Feidt wrote:
> 
> I'm trying to set up N1MM to send CW to my K3 for ARRL DX CW next weekend. 
> I'm
> using the USB to Serial cable supplied by Elecraft.  The computer 
> radio control is working fine and I'm able to get spots, change bands, 
> QSY to spots, etc. I'm set up for SO1V. I've checked "CW" box on the 
> same port (COM4) as is used for radio control. The N1MM K3 
> "SupportedRadios" page
> (http://pages.cthome.net/n1mm/html/English/SupportedRadios.htm) says,
> 
>    The K3 accepts CW on DTR (pin 4) of the same COM port
>    you're using to control the K3. Set N1MM to send CW on
>    that port (Ports setup), and set PTT-KEY (second K3
>    CONFIG menu) to OFF-DTR, and set the K3 for QSK. In
>    other words, you don't need that transistor adapter unless
>    you want to do SO2R.
> 
> However, when I set PTT-KEY to OFF-DTR, the K3 goes into "Test" output 
> mode and the transmitted in keyed continuously until I take it out of 
> OFF-DTR.  The
> K3 is
> set for QSK.
> 
> What am I doing wrong?
> 
> Any insight will be very much appreciated.
> 
> 73,
> 
> Bill/NG3K
> 
> 
> 
> 
> 
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