To get good performance at (say) 10 MHz,   you need a clock at hundreds 
of MHz.  That is a sample rate of hundreds of MHz, to do anything 
useful.  I can also guarantee you cannot find a PC whose processor is 
capable of delivering 10 MHz  with a noise floor, SFDR that even 
remotely approaches a DDS.

Bob
N4HY



[EMAIL PROTECTED] wrote:
> DDS
>
>   I was reading the article from the ARRL Handbook again on DDS using
> the hardware method.  A mostly software method however sounds better. 
> Thats herein below.
>
>   
>   Here the micro processor is the PC.
>
> ka9rza
>
>
>   


-- 
AMSAT VP Engineering. Member: ARRL, AMSAT-DL, TAPR, Packrats,
NJQRP/AMQRP, QRP ARCI, QCWA, FRC. ARRL SDR Wrk Grp Chairman
Laziness is the number one inspiration for ingenuity.  Guilty as charged!



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