Are you confusing a direct conversion receiver with a direct sampling receiver? 
A super-het (K3) or direct conversion (KX3) receiver is a heterodyne system. A 
direct sampling receiver is not.

wunder
K6WRU
Walter Underwood
BSEE Rice University, 1981
CM87wj
http://observer.wunderwood.org/ (my blog)

> On Apr 25, 2016, at 9:00 PM, Wes <[email protected]> wrote:
> 
> I'm not smackin' this tar baby except to note that a direct sampling 
> radio*is* a heterodyne radio.
> 
> On 4/25/2016 8:19 PM, Robert Vargas-KP4Y via Elecraft wrote:
>> I agree that comparisons between an heterodyne radio and direct-sampling 
>> radio is not like comparing apples vs apples.
> 
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