[Elecraft] K3 & ADAT ADT-200A by HB9CBU

[Toby Deinhardt]

Hi Phil,

> There is no inherent reason why the MDS could not be that low in
> direct sampling SDRs.  It is mainly a matter of design
> decision/implementation.

This may be a stupid (or at least ignorant) question, but if the dynamic 
range of the ADC itself is defined by the number of bits it resolves and 
a maximum voltage must never (should never) be exceeded, wouldn't 
improving MDS by 10 to 15db create major problems with the high end of 
the scale? I would tend to think that analog solutions could be more 
forgiving or that the K3 path which provides an AGC to protect the ADC 
might be (at present) a "better" way to go.

Or are you suggesting using much faster ADCs so that you have a higher 
level of over sampling, allowing more process gain during decimation?

vy 73 de toby