[Elecraft] K3S's built-in RTTY

[Joe Subich, W4TV]

 > For those using the K3, get an external soundcard, even an inexpensive
 > one and use the K3's VOX - it will perform better and with lower noise
 > than the Signalink.

And it will not require that the sound car transmit level be turned to
the maximum as is the case with Signalink (read their instructions).
By running the sound card transmit level at no more than 80% the TX
audio is generally *significantly* cleaner because the sound card audio
chain is not being driven into clipping.

73,

    ... Joe, W4TV


On 3/8/2017 6:50 PM, Don Wilhelm wrote:
> Actually, the K3 has isolation for the Line In and Line Out signals, and
> no interface is required for digital modes.  Just a computer soundcard
> and good quality audio cables so they do not pick up hum, buzz and
> noise.  PTT is not required either, use VOX.  Actually, the Signalink
> PTT is derived from the audio stream - so in effect, the Signalink has
> its own simplistic VOX which activates its PTT output.
>
> For those using the K3, get an external soundcard, even an inexpensive
> one and use the K3's VOX - it will perform better and with lower noise
> than the Signalink.
>
> For the K3S and a K3 that has the new KIO3B option installed, everything
> is the same, except the "external soundcard" (as seen by the computer
> application) is built into the K3/K3S and no audio cables are involved.
>
> 73,
> Don W3FPR
>
> On 3/8/2017 6:18 PM, Don Pomplun wrote:
> like the SignalLink USB.
>> Am I correct so far?
>> So then fig 10-14 (Fred's book) gives me the impression that with this
>> hookup, I can then run any RTTY software on the PC and the PC to K3S
>> interfacing is all taken care of, right?
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