[Elecraft] K3: DIG 0

[Ken K3IU]

It's on the schematics as DIG0

Julian G4ILO wrote:
> I'm reading Data Modes on page 28. There are two references to "DIG 0"
> which can be used for direct modulation, which I cannot find (using
> search) anywhere else in the manual. What input is this?
>
> I'm also interested in how this modulation is achieved. Years ago, I
> operated RTTY with an FT-301 using a home made modem and direct
> modulation. I wrote a program which sent and received 5-bit Baudot
> code at 45.5 baud via the serial port. Is this what the K3 would need,
> or can you send plain ASCII at a normal supported speed and the
> firmware buffers it?
>
> If the modulation is really "direct" as stated, how would direct
> modulation of PSK31 be achieved, or do I misunderstand this
> capability? I'm not sure I will ever need this capability (the use of
> KY commands via the CAT interface seems to me to be more useful) but
> it looks interesting. Everything else is going to stop the moment my
> K3 arrives, that's for certain. :)
>