[time-nuts] Adjusting HP 5065A frequency
lists at rtty.us
Mon Oct 22 20:29:09 EDT 2012
Yes, a DDS at high freq./ narrow band crystal filter / divide to low audio / image reject mix with input back to rf / lock to VCXO approach would get around much (but not quite all) of the truncation stuff. It's complex enough that I suspect that ADC approach would give it a "run for the money" ( equal to, or better than bang for the buck).
On Oct 22, 2012, at 7:18 PM, Magnus Danielson <magnus at rubidium.dyndns.org> wrote:
> On 10/23/2012 12:41 AM, Bob Camp wrote:
>> Modern parts are pretty cool. I have measured them them for this application. The truncation still is a big issue.
> If you generate a lower frequency and gear it up in frequency, you would get better result. It's more or less what the phase micro-steppers do anyway.
> IEM Kvarz also makes micro-stepper BTW.
> time-nuts mailing list -- time-nuts at febo.com
> To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> and follow the instructions there.
More information about the time-nuts