[hpsdr] KW7CD articles in PDF format

[Robert McGwier]

Bob McGwier wrote:
> ***** High Performance Software Defined Radio Discussion List *****
> 
> It is clear from my conversations and  these six year old articles , 
> they do not contain information that is relevant to today's 
> discussions.  Analog Devices (as one example) has learned a lot about 

This is poorly worded.  His articles DO contain relevant information. 
The articles do not contain information that is relevant to the 
discusion that happened long AFTER the articles were written.

Bob

> the source, cause, mitigations, etc. in spurious emission generation in 
> DDS's in the intervening years since this research was done.  This is 
> apparent when one compares the AD9959, available now, with the two 
> generations earlier DDS which was used in the SDR1000.   They are as if 
> from different universes.  The 9959 is not perfect but I have seen much 
> worse spurious emissions from a number of late model transceivers.
> 
> Notice he makes his claim of inventor of the DDS driven PLL LO in this 
> article.  It is quite an interesting read.
> 
> Bob
> 


-- 
AMSAT Director and VP Engineering. Member: ARRL, AMSAT-DL,
TAPR, Packrats, NJQRP, QRP ARCI, QCWA, FRC. ARRL SDR WG Chair
"If you're going to be crazy, you have to get paid for it or
else you're going to be locked up." Hunter S. Thompson

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