[Elecraft] K3S fsk with usb

[Bob Wilson, N6TV]

Yes the S-BOX is designed to key FSK and PTT on a K3 ACC port, providing
the traditional NPN keying circuit, with no Y-BOX required (though it may
be convenient to have as well, depending on what else you need to connect
to the K3 ACC port).  Straight 9-pin and 15-pin D-SUB cables handle
everything, no need to use the S-BOX RCA connectors if you have a K3 or
K3S.  There are four independent keying circuits inside the S-BOX, so you
can key FSK on two radios with the one box, or CW/PTT on one and FSK/PTT on
the other, if you like.

See these links for a sample connection diagram and schematics:

https://www.kkn.net/~n6tv/S-BOX/Features.html#RemoteHams

https://www.kkn.net/~n6tv/S-BOX/Features.html#SO2RRTTY

Many other configurations are possible.

If you use a USB-to-Serial device by Edgeport, MMTTY can open open the
serial port directly at 45.5 baud Baudot.  If you use one based on FTDI,
such as the one built-in to the S-BOX-USB, you need to use EXTFSK or
EXTFSK64 with MMTTY since MMTTY standalone cannot open these directly at
45.5 baud.

The K3 produces very clean FSK.  AFSK can also work but there is more
potential for RFI problems and getting the audio levels set just right.

73,
Bob, N6TV
https://bit.ly/S-BOX

On Thu, Aug 30, 2018 at 6:53 PM, Peter W2IRT <lists at w2irt.net> wrote:

> I went a similar route with a MicroKeyer MK-II. Does the job very well,
> but it
> makes disconnecting and re-connecting the radio a cast iron bear of a job.
> I
> really want to replace the MK-II with another (simpler) solution for FSK,
> CW
> keying, SSB voice file sequencing and CAT control, and was thinking the
> combination of a Y-box and an S-box-USB would do the job. The problem
> being the
> MK-II is RFI-susceptible, and the software has eaten itself on several
> occasions
> over the past few years.
>
>  - pjd
>
>
> -----Original Message-----
> From: elecraft-bounces at mailman.qth.net [mailto:elecraft-bounces@
> mailman.qth.net]
> On Behalf Of AB4IQ
> Sent: Thursday, August 30, 2018 9:04 PM
> To: 'Nr4c'; 'Richard Ferch'
> Cc: elecraft at mailman.qth.net
> Subject: Re: [Elecraft] K3S fsk with usb
>
> I have a RigExpert TI-8 and Cable for the K3S that I bought new that does
> FSK with a built in Winkeyer as well.  I thought I would use it on the K3S
> but instead I just went the USB route and do AFSK.  It's still setting in
> the box looking lonely.  I also have cables for the Ten Tec Orion II, and
> Kenwood 590SG which I have parted with recently and probably need to get
> rid
> of this much needed (Ya Right) stuff.  Hi..
>
> The USB route was the simplest and does all of the sound card modes.
>
> Ed.. AB4IQ
>
>
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