[Elecraft] RTTY FSK

[Joe Subich, W4TV]

> Would like to know what is needed to make the switch to FSK such that
> the K3 can be used in DATA mode instead of USB, while still using
> N1MM/FLDigi integration and an RS232 interface.

fldigi *does not support an RS-232 interface for FSK*.  Look in the
fldigi help files for pFSK (pseudo FSK) and build that circuit to
convert on/off keyed audio tones to FSK.

However, *any program* capable of AFSK/PSK can be used with the K3 in
DATA mode simply by selecting DATA A (for wideband PSK and AFSK in
USB) or AFSK A (for narrow filter AFSK in LSB).  See the K3 Owner's
Manual information on DATA Sub-modes.

73,

    ... Joe, W4TV


On 2014-09-25 11:15 AM, Robert Fanfant wrote:
> I currently have N1MM integrated with FLDigi, a SignalLink unit, and
> an RS232 interface to the K3. All works well using AFSK with the K3
> in USB mode.
>
> Can someone direct me on how to setup my K3 for FSK RTTY? Would like
> to know what is needed to make the switch to FSK such that the K3 can
> be used in DATA mode instead of USB, while still using N1MM/FLDigi
> integration and an RS232 interface.
>
> Thanks in advance.
 > -rob N7QT