RTTY

[w0sz]

I'm new to the digital age and with the new K3 I would like to participate
in the upcoming RTTY contest.  I know that I can use the K3 with the keyer,
which by the way does work, but I was thinking maybe I would like to try my
computer.  I have a Gateway laptop and was wondering what the group would
recommend to use the laptop with the K3 for the RTTY contest.  Many thanks
in advance and 73 and Happy New Year.  Steve W0SZ.

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[Rajiv Dewan, N2RD]

It is very easy to get it to work with K3, given all the built in  
isolation transformers in the rig.  Physically, all  you need are  
audio patch cords between the computer and the K3.  No  need for FSK  
or PTT (no serial port needed)

Simply put, just:

* connect the speaker/headphone output on the computer to line in on  
K3 back panel
* mic in on the computer to line out on the K3 back panel
* turn vox on the K3
* set meter to ALC on K3
* set DATA MD to AFSK A on the K3
* turn on VOX, may need a gain setting on it too
* in the menu, go to MIC SEL and pick LINE IN
* do a test transmit in the TEST mode and set the mic/line out gain on  
the K3 and volume on the K3 so as to not overshoot the ALC, 4 to 7 bars

For extra selectivity, use a narrow filter (250Hz is fine if you have  
it) and activate dual pb

It should just work and it does.

Plus, as an added bonus turn on TEXT DEC and you can copy on the K3  
screen.

For many years I used a Yaesu 1KMP with FSK and hardwire PTT using a  
serial port and back panel connections.  I like the utter simplicity  
of the K3 setup.  May be I will use it more now.  BTW for BPSK or any  
other digital mode just change the DATA MD to DATA A.

Enjoy.

Raj, N2RD


On Jan 2, 2008, at 2:47 PM, Steve Zumbrun wrote:

> I'm new to the digital age and with the new K3 I would like to  
> participate in the upcoming RTTY contest.  I know that I can use the  
> K3 with the keyer, which by the way does work, but I was thinking  
> maybe I would like to try my computer.  I have a Gateway laptop and  
> was wondering what the group would recommend to use the laptop with  
> the K3 for the RTTY contest.  Many thanks in advance and 73 and  
> Happy New Year.  Steve W0SZ.
> _______________________________________________
> Elecraft mailing list
> Post to: [hidden email]
> You must be a subscriber to post to the list.
> Subscriber Info (Addr. Change, sub, unsub etc.):
> http://mailman.qth.net/mailman/listinfo/elecraft
> Help: http://mailman.qth.net/subscribers.htm
> Elecraft web page: http://www.elecraft.com

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Elecraft web page: http://www.elecraft.com