[time-nuts] HP 5065A A1 replacement with DDS

Poul-Henning Kamp phk at phk.freebsd.dk
Sun Jun 24 18:38:13 UTC 2018


--------
In message <A51847C8-3F8B-45FF-BD6D-196E85C41AEF at n1k.org>, Bob kb8tq writes:

>The result can be a very close in spur ( like << 1 Hz) that really rips up 
>your ADEV since it passes through all the cleanup PLL’s ….

Indeed.

That's one of the reason I went with Bo's DDS (32bit0 instead of
the eBay modules (20-24 bit).  Higher resolution mitigates the spur
problem at least a little bit.

-- 
Poul-Henning Kamp       | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG         | TCP/IP since RFC 956
FreeBSD committer       | BSD since 4.3-tahoe    
Never attribute to malice what can adequately be explained by incompetence.



More information about the Time-nuts_lists.febo.com mailing list