I mostly use cocoaModem for RTTY and other digital modes. I have also used fldigi. For both programs, I use a SignaLink USB as the interface between my MacBook Pro and the K3 with a home brew cable that connects the SignaLink to the Line In and Out connectors on the back of the K3. I use a separate connection for PTT from the SignaLink to the PTT In connector on the K3. This last connection lets me switch between voice and digital modes without changing the K3's VOX setting. (Note that in this configuration, the SignaLink is performing the VOX function.)

For RTTY, I run the K3 in AFSK A mode. I use DATA A mode for all other digital modes.

I have a preference for cocoaModem over fldigi. I think I get better decoding from cocoaModem, but my preference may be mostly that I am much for familiar with cocoaModem than with fldigi.

cocoaModem is well integrated with both RUMlog, a DX and general purpose logging program, and RUMped, a contest logging program. All these programs are no cost and source code is available for cocoaModem.

73 Bill AE6JV

On 1/1/15 at 10:09 AM, [email protected] (David Ahrendts) wrote:

Total newby to RTTY. Wanna learn it. What Mac OS software do you recommend for the KX3 for RTTY and other data?
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Bill Frantz        | I don't have high-speed      | Periwinkle
(408)356-8506 | internet. I have DSL. | 16345 Englewood Ave www.pwpconsult.com | | Los Gatos, CA 95032

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