www.rttycontesting.com shows a simple homebrew FSK/PTT interface and
references some commercial interfaces. There are many choices. For a more
comprehensive discussion, including an interface comparison chart, see the
RTTY Contesting column in the May/June 2012 issue of NCJ, page 41.
Ed W0YK
Dick AA5VU wrote:
> A ham friend called last night he wants to get on RTTY with a
> PC and an Icom IC-756 Pro III and he plans to use FSK. He
> wanted to know if there was an inexpensive interface device
> to handle the connections between the PC and the Pro III.
>
> As a Mac user I only use AFSK and could not help him. The
> SignaLink USB is good for AFSK but does not support FSK. How
> do FSK users handle the connections between the PC and and Icom?
>
> I referred him to AA5AU's web page and he did not see any
> mention of using something like the SignaLink for FSK.
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