[Elecraft] [KX3] ADC/DAC access, keyer input

[Edward R. Cole]

HUGE FAILURE TO COMMUNICATE, guys!!!

The originator wanted a IF, shorthand for interface.  He should have 
written it I/F and then all this extraneous e-mail would have been avoided.

The KX3, like the K3 is a SDR, meaning it has a IQ mixer to produce 
the quadrature data streams for the internal micro-processor to use 
for recovering modulation of multiple kinds of modes.  He is just 
wanting access at the digital level to the IQ data for use outside 
the radio.  This is what is not available in the K3 design.

I understand the K3 was designed several years ago and wasn't 
intended to run anything but Elecraft's proprietory sw.  But times 
they do change - its 2011 and a whole lot is changing on the SDR 
scene if you really look.  What some of us are asking is for it to be 
able to run other sw outside the box.  It should not be that 
complicated to provide a digital port for exporting the IQ signal 
pair to an external computer.  No body wants more soundcards...the 
request is exactly to avoid them.

The other wish for a keyboard port would be nice for a lot of us that 
might use the KX3 for CW and internally supported DATA modes (Psk, 
RTTY are a couple that come to mind).  I haven't read up on details 
that are out on the KX3, but now seems a good time to get any last 
minute design wishes expressed (for a radio going into production in 5-mo.).
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I am still on the fence on what direction I want to go regarding the 
KX3.  I have a FT-817 which was bought expressly for use as a 144-MHz 
IF for portable mw operations.  It also can operate on ham 
satellites, though not crossband duplex, which is desirable.  I may 
decide to sell off my FT-817 and some other stuff to raise cash for a 
KX3+2m transverter (embedded would be a nicety).  But I l already 
have a 144-28 transverter for using my SDR-IQ, which can be used with 
the KX3.  Only problem is it outputs 20mw for mw transverter I/F, so 
an upgrade would be needed for 5w.  I am assuming the KX3 will have a 
transverter I/F.



73, Ed - KL7UW, WD2XSH/45
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